Search
SectionsIndexSymptoms
  • Cardiovascular Disorders
  • Clinical Pharmacology
  • Critical Care Medicine
  • Dental Disorders
  • Dermatologic Disorders
  • Ear, Nose, and Throat Disorders
  • Endocrine and Metabolic Disorders
  • Eye Disorders
  • Gastrointestinal Disorders
  • Genitourinary Disorders
  • Geriatrics
  • Gynecology and Obstetrics
  • Hematology and Oncology
  • Hepatic and Biliary Disorders
  • Immunology; Allergic Disorders
  • Infectious Diseases
  • Injuries; Poisoning
  • Musculoskeletal and Connective Tissue Disorders
  • Neurologic Disorders
  • Nutritional Disorders
  • Pediatrics
  • Psychiatric Disorders
  • Pulmonary Disorders
  • Special Subjects
ABCDEFGHI
JKLMNOPQR
STUVWXYZ
  • Abdominal Pain, Acute
  • Abdominal pain, Chronic
  • Alopecia
  • Amenorrhea
  • Amnesia
  • Anosmia
  • Bleeding, Excessive
  • Breast Lumps
  • Chest Pain
  • Constipation in Adults
  • Constipation in Children
  • Cough in Adults
  • Cough in Children
  • Crying
  • Diarrhea in Adults
  • Diarrhea in Children
  • Diplopia
  • Dizziness
  • Dry Mouth
  • Dysmenorrhea
  • Dyspepsia
  • Dysphagia
  • Dyspnea
  • Dysuria
  • Earache
  • Ear Discharge
  • Edema
  • Edema During Late Pregnancy
  • Epistaxis
  • Erectile dysfunction
  • Eyelid Swelling
  • Eye Pain
  • Fever
  • Fever, Acute, in Adults
  • Fever, Chronic (FUO)
  • Fever in Infants and Children
  • Floaters
  • Gas
  • Gastrointestinal Bleeding
  • Halitosis
  • Headache
  • Hearing Loss
  • Hearing Loss: Sudden Deafness
  • Hematospermia
  • Hematuria
  • Hemoptysis
  • Hiccups
  • Hirsutism
  • Insomnia and Excessive Daytime Sleepiness
  • Itching
  • Itching, Anal
  • Jaundice in Adults
  • Jaundice in Neonates
  • Joint Pain, Monarticular
  • Joint Pain, Polyarticular
  • Knee pain
  • Lump in Throat
  • Nasal Congestion and Rhinorrhea
  • Nausea and Vomiting During Early pPregnancy
  • Nausea and Vomiting in Adults
  • Nausea and Vomiting in Infants and Children
  • Neck and Back Pain
  • Neck Mass
  • Nipple Discharge
  • Orthostatis Hypotension
  • Pain
  • Pain, Chronic
  • Palpitations
  • Pelvic Pain
  • Pelvic Pain During Early Pregnancy
  • Polyuria
  • Priapism
  • Red Eye
  • Scrotal Pain
  • Sore Throat
  • Stomatitis
  • Stridor
  • Syncope
  • Tearing
  • Tinnitus
  • Toothache
  • Tremor
  • Urinary Frequency
  • Urinary Incontinence in Adults
  • Urinary Incontinence in Children
  • Urinary Retention
  • Urticaria
  • Vaginal Bleeding
  • Vaginal Bleeding During Early Pregnancy
  • Vaginal Bleeding During Late Pregnancy
  • Vaginal Itching and Discharge
  • Vision, Blurred
  • Vision Loss, Acute
  • Weakness, Generalized
  • Wheezing
Resources
  • About The Merck Manual
  • Ready Reference Guides
  • Trade Names of Some Commonly Used Drugs
  • Normal Laboratory Values
  • Clinical Calculators
  • Multimedia
  • Selected Links
Manuals available online
'/home/index.html' + bookPageLink
 
'/professional/index.html'
These and other Manuals available
in print, online, and as mobile applications.

See more at MerckManuals.com
Sections in Health Care Professionals
  • Cardiovascular Disorders
  • Clinical Pharmacology
  • Critical Care Medicine
  • Dental Disorders
  • Dermatologic Disorders
  • Ear, Nose, and Throat Disorders
  • Endocrine and Metabolic Disorders
  • Eye Disorders
  • Gastrointestinal Disorders
  • Genitourinary Disorders
  • Geriatrics
  • Gynecology and Obstetrics
  • Hematology and Oncology
  • Hepatic and Biliary Disorders
  • Immunology; Allergic Disorders
  • Infectious Diseases
  • Injuries; Poisoning
  • Musculoskeletal and Connective Tissue Disorders
  • Neurologic Disorders
  • Nutritional Disorders
  • Pediatrics
  • Psychiatric Disorders
  • Pulmonary Disorders
  • Special Subjects
 
  • Merck Manual
  • >
  • Health Care Professionals
  • >
  • Infectious Diseases
 
Infectious Diseases
Biology of Infectious Disease
Introduction
expand / collapse Host Defense Mechanisms Against Infection
expand / collapseNatural Barriers
Skin
Mucous membranes
Respiratory tract
GI tract
GU tract
Nonspecific Immune Responses
Specific Immune Responses
expand / collapse Factors Facilitating Microbial Invasion
expand / collapse Virulence Factors
Capsule
Enzymes
Toxins
Other factors
expand / collapse Microbial Adherence
Biofilm
Antimicrobial Resistance
expand / collapse Defects in Host Defense Mechanisms
Mechanisms
expand / collapse Manifestations of Infection
Clinical
Hematologic
Other organ systems
expand / collapse Fever
expand / collapsePathophysiology
Consequences of fever
expand / collapseEtiology
Infectious causes
expand / collapseEvaluation
History
Physical examination
Red flags
Interpretation of findings
Testing
Treatment
Geriatrics Essentials
Key Points
expand / collapse Fever of Unknown Origin (FUO)
Etiology
expand / collapseEvaluation
History
Physical examination
Red flags
Interpretation of findings
Testing
Treatment
Geriatrics Essentials
Key Points
expand / collapse Abscesses
Etiology
Symptoms and Signs
Diagnosis
Treatment
Key Points
expand / collapse Bacteremia
Etiology
Pathophysiology
Symptoms and Signs
Diagnosis
Treatment
Key Points
Biological Warfare and Terrorism
Laboratory Diagnosis of Infectious Disease
Introduction
expand / collapse Microscopy
Gram stain
Acid-fast and moderate (modified) acid-fast stains
Fluorescent stains
India ink (colloidal carbon) stain
Warthin-Starry stain and Dieterle stain
Wright stain and Giemsa stain
Trichrome stain (Gomori-Wheatley stain) and iron hematoxylin stain
Culture
expand / collapse Susceptibility Testing
Qualitative methods
Semiquantitative methods
Nucleic acid–based methods
expand / collapse Immunologic Tests for Infectious Disease
Agglutination tests
Complement fixation
Enzyme immunoassays
Precipitation tests
Western blot test
expand / collapse Non-Nucleic Acid–Based Identification Methods for Infectious Disease
Chromatographic methods
Mass spectroscopy
expand / collapse Nucleic Acid–Based Identification Methods for Infectious Disease
Amplification
Immunization
expand / collapseOverview of Immunization
Risks, Restrictions, and High-Risk Groups
expand / collapseRoutine Vaccinations
expand / collapse Diphtheria-Tetanus-Pertussis
Preparations
Administration
Adverse effects
expand / collapseTetanus-Diphtheria
Preparations
Administration
Adverse effects
expand / collapse Haemophilus influenzae Type b
Preparations
Administration
Adverse effects
expand / collapse Hepatitis A
Preparations
Administration
Adverse effects
expand / collapse Hepatitis B
Preparations
Administration
Adverse effects
expand / collapse Human Papillomavirus
Preparations
Administration
Adverse effects
expand / collapse Influenza
Preparations
Administration
Adverse effects
expand / collapse Measles, Mumps, and Rubella
Preparations
Administration
Adverse effects
expand / collapse Pneumococcal Disease
Preparations
Administration
Adverse effects
expand / collapse Poliomyelitis
Preparations
Administration
Adverse effects
expand / collapse Varicella
Preparations
Administration
Adverse effects
expand / collapse Herpes Zoster
Preparations
Administration
Adverse effects
Simultaneous Administration of Different Vaccines
Immunizations for Travelers
expand / collapse Passive Immunization
Human immune globulin (IG)
Hyperimmune globulin
Bacteria and Antibacterial Drugs
expand / collapseOverview of Bacteria
Morphology
Staining
Encapsulation
Oxygen requirements
expand / collapseOverview of Antibacterial Drugs
expand / collapse Selection and Use of Antibiotics
Spectrum of activity
Effectiveness
Route
Special populations
Duration
Complications
Antibiotic Resistance
expand / collapse Aminoglycosides
Pharmacology
Indications
Contraindications
Use During Pregnancy and Breastfeeding
expand / collapse Adverse Effects
Dosing considerations
Spectinomycin
expand / collapse β-Lactams
expand / collapse Cephalosporins
Pharmacology
expand / collapseIndications
First-generation cephalosporins
Second-generation cephalosporins and cephamycins
Third-generation cephalosporins
Fourth-generation cephalosporin
Fifth-generation cephalosporin
Contraindications
Use During Pregnancy and Breastfeeding
Adverse Effects
Contraindications
expand / collapse Penicillins
Pharmacology
expand / collapseIndications
Amoxicillin and ampicillin
Penicillinase-resistant penicillins
Broad-spectrum (antipseudomonal) penicillin
Contraindications
Use During Pregnancy and Breastfeeding
expand / collapse Adverse Effects
Hypersensitivity
Rashes
Other adverse effects
Dosing Considerations
Other β-Lactams
expand / collapse Chloramphenicol
Pharmacology
Indications
Contraindications
Use During Pregnancy and Breastfeeding
Adverse Effects
expand / collapse Daptomycin
Indications
Contraindications
Use During Pregnancy and Breastfeeding
Adverse Effects
Dosing Considerations
expand / collapse Fluoroquinolones
Pharmacology
Indications
Contraindications
Use During Pregnancy and Breastfeeding
Adverse Effects
Dosing Considerations
expand / collapseLincosamides, Oxazolidinones, and Streptogramins
expand / collapse Lincosamides
Pharmacology
Indications
Contraindications
Use During Pregnancy and Breastfeeding
Adverse Effects
Dosing Considerations
expand / collapse Oxazolidinones
Contraindications
Use During Pregnancy and Breastfeeding
Adverse Effects
Streptogramins
expand / collapse Macrolides
Pharmacology
Indications
Contraindications
Use During Pregnancy and Breastfeeding
Adverse Effects
Dosing Considerations
expand / collapse Telithromycin
Indications
Contraindications
Use During Pregnancy and Breastfeeding
Adverse Effects
Dosing Considerations
expand / collapse Metronidazole
Pharmacology
Indications
Contraindications
Use During Pregnancy and Breastfeeding
Adverse Effects
Dosing Considerations
Mupirocin
expand / collapse Nitrofurantoin
Pharmacology
Indications
Contraindications
Use During Pregnancy and Breastfeeding
Adverse Effects
expand / collapse Polypeptides
Indications
Contraindications
Use During Pregnancy and Breastfeeding
Adverse Effects
expand / collapse Rifamycins
expand / collapseRifampin and Rifabutin
Pharmacology
Indications
Contraindications
Use During Pregnancy and Breastfeeding
Adverse Effects
Dosing Considerations
Rifaximin
expand / collapse Sulfonamides
Pharmacology
Indications
Contraindications
Use During Pregnancy and Breastfeeding
Adverse Effects
Dosing Considerations
expand / collapse Trimethoprim and Sulfamethoxazole
Pharmacology
Indications
Contraindications
Use During Pregnancy and Breastfeeding
Adverse Effects
Dosing Considerations
expand / collapse Tetracyclines
Pharmacology
Indications
Contraindications
Use During Pregnancy and Breastfeeding
Adverse Effects
Dosing Considerations
expand / collapse Tigecycline
Indications
Contraindications
Use During Pregnancy and Breastfeeding
Adverse Effects
Dosing Considerations
expand / collapse Vancomycin
Pharmacology
Indications
Contraindications
Use During Pregnancy and Breastfeeding
Adverse Effects
Dosing Considerations
Gram-Positive Cocci
Introduction
expand / collapse Pneumococcal Infections
Serotypes
Risk factors
Diseases Caused by Pneumococci
Diagnosis
Treatment
expand / collapsePrevention
Vaccines
Prophylactic antibiotics
Key Points
expand / collapse Staphylococcal Infections
Risk factors
expand / collapseDiseases Caused by Staphylococci
Direct invasion
Toxin-mediated disease
expand / collapseDiagnosis
Screening
expand / collapseTreatment
Antibiotic resistance
Prevention
Key Points
expand / collapse Streptococcal Infections
Classification
Virulence factors
expand / collapseDiseases Caused by Streptococci
Delayed complications
Diagnosis
expand / collapseTreatment
Pharyngitis
Skin infection
Other streptococcal infections
Key Points
expand / collapse Enterococcal Infections
expand / collapseTreatment
Resistance
expand / collapse Toxic Shock Syndrome (TSS)
Staphylococcal toxic shock
Streptococcal toxic shock
Symptoms and Signs
Diagnosis
Treatment
Key Points
Gram-Positive Bacilli
expand / collapse Anthrax
Etiology
expand / collapsePathophysiology
Virulence factors
Symptoms and Signs
Diagnosis
Prognosis
Treatment
expand / collapsePrevention
Postexposure prophylaxis
Key Points
expand / collapse Diphtheria
Diphtheria toxin
Epidemiology and transmission
expand / collapseSymptoms and Signs
Pharyngeal infection
Skin infection
Complications
Diagnosis
Treatment
expand / collapsePrevention
Vaccination
Postexposure antibiotics
Key Points
expand / collapse Erysipelothricosis
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Listeriosis
Risk factors
Symptoms and Signs
Diagnosis
Treatment
Prevention
Key Points
expand / collapse Nocardiosis
Risk factors
Symptoms and Signs
Diagnosis
Prognosis
Treatment
Key Points
Gram-Negative Bacilli
Introduction
expand / collapse Bartonella Infections
expand / collapse Cat-Scratch Disease
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Oroya Fever and Verruga Peruana
Oroya fever
Verruga peruana
Bacillary Angiomatosis
expand / collapse Trench Fever
Diagnosis
Treatment
expand / collapse Brucellosis
Complications
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Campylobacter and Related Infections
Complications
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Cholera
Symptoms and Signs
Diagnosis
Treatment
Prevention
expand / collapse Noncholera Vibrio Infections
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Escherichia coli Infections
Diseases caused by E. coli
Diagnosis
Treatment
expand / collapse E. coli O157:H7 Infection
Epidemiology
Symptoms and Signs
Diagnosis
Treatment
Prevention
expand / collapse Haemophilus Infections
Diseases caused by Haemophilus sp
Diagnosis
Treatment
Prevention
HACEK Infections
Klebsiella, Enterobacter, and Serratia Infections
expand / collapse Legionella Infections
Diseases caused by Legionella sp
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Melioidosis
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Pertussis
Diseases caused by pertussis
Parapertussis
Symptoms and Signs
Diagnosis
Treatment
Prevention
expand / collapse Plague and Other Yersinia Infections
Symptoms and Signs
Diagnosis
Treatment
Prevention
Other Yersinia Infections
Proteeae Infections
expand / collapse Pseudomonas and Related Infections
Epidemiology
expand / collapseDiseases Caused by Pseudomonas
Skin and soft-tissue infections
Respiratory tract infections
Other infections
Bacteremia
Diagnosis
expand / collapseTreatment
Localized infection
Systemic infection
expand / collapse Salmonella Infections
expand / collapse Typhoid Fever
expand / collapseEpidemiology
Carrier state
Symptoms and Signs
Diagnosis
Prognosis
expand / collapseTreatment
Carriers
Prevention
expand / collapse Nontyphoidal Salmonella Infections
Risk factors
Diseases caused by nontyphoidal Salmonella sp
Symptoms and Signs
Diagnosis
expand / collapseTreatment
Carriers
Prevention
expand / collapse Shigellosis
expand / collapseSymptoms and Signs
Complications
Diagnosis
Treatment
Prevention
expand / collapse Tularemia
Symptoms and Signs
Diagnosis
Treatment
Prevention
Spirochetes
Introduction
expand / collapse Bejel, Pinta, and Yaws
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Leptospirosis
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Lyme Disease
Epidemiology
Pathophysiology
expand / collapseSymptoms and Signs
Early localized
Early disseminated
Late
Diagnosis
Treatment
Prevention
expand / collapse Rat-Bite Fever
Streptobacillary rat-bite fever
Spirillary rat-bite fever (sodoku)
expand / collapse Relapsing Fever
Symptoms and Signs
Diagnosis
Treatment
Neisseriaceae
Introduction
expand / collapse Acinetobacter Infections
expand / collapseDiseases Caused by Acinetobacter
Risk factors
Drug resistance
Treatment
expand / collapse Kingella Infections
Diseases Caused By Kingella
Treatment
expand / collapse Meningococcal Diseases
Diseases Caused by Meningococci
expand / collapsePathophysiology
Risk factors
Symptoms and Signs
Diagnosis
Treatment
expand / collapsePrevention
Antibiotic prophylaxis
Vaccination
Moraxella catarrhalis Infection
Oligella Infections
Chlamydia and Mycoplasmas
expand / collapse Chlamydia
expand / collapseDiagnosis
Screening
Treatment
Mycoplasmas
Rickettsiae and Related Organisms
expand / collapseOverview of Rickettsial Infections
expand / collapseDiagnosis
Differentiating rickettsial from other infections
Differentiating among rickettsial diseases
Testing
Treatment
expand / collapse Other Spotted Fever Rickettsioses
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Epidemic Typhus
Symptoms and Signs
Diagnosis
Treatment
Prevention
Brill-Zinsser Disease
expand / collapse Murine (Endemic) Typhus
Diagnosis
Treatment
Rickettsialpox
expand / collapse Rocky Mountain Spotted Fever (RMSF)
Epidemiology
Pathophysiology
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Scrub Typhus
Symptoms
Diagnosis
Treatment
expand / collapse Ehrlichiosis and Anaplasmosis
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Q Fever
Etiology
Symptoms and Signs
Diagnosis
Treatment
Prevention
Anaerobic Bacteria
expand / collapseOverview of Anaerobic Bacteria
Testing
expand / collapse Actinomycosis
Symptoms and Signs
Diagnosis
Prognosis
Treatment
expand / collapse Botulism
Sources of infection
expand / collapseSymptoms and Signs
Food-borne botulism
Wound botulism
Diagnosis
expand / collapseTreatment
Antitoxin
Prevention
Infant Botulism
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Overview of Clostridial Infections
Pathophysiology
Diseases Caused by Clostridia
expand / collapse Clostridium difficile–Induced Diarrhea
Pathophysiology
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Clostridial Intra-abdominal Infections
Diagnosis
Treatment
expand / collapse Clostridial Necrotizing Enteritis
Neutropenic enterocolitis (typhlitis)
Neonatal necrotizing enterocolitis
Clostridium perfringens Food Poisoning
expand / collapse Clostridial Soft-Tissue Infections
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Tetanus
Pathophysiology
expand / collapseSymptoms and Signs
Spasms
Autonomic instability
Localized tetanus
Tetanus neonatorum
Diagnosis
Prognosis
expand / collapseTreatment
General principles
Wound care
Antitoxin
Management of muscle spasm
Management of autonomic dysfunction
Antibiotics
Supportive care
Prevention
expand / collapse Mixed Anaerobic Infections
Etiology
Pathophysiology
Symptoms and Signs
Diagnosis
Treatment
Prevention
Mycobacteria
Introduction
expand / collapse Tuberculosis (TB)
expand / collapseEtiology
Risk factors
Epidemiology
expand / collapsePathophysiology
Primary infection
Active disease
Symptoms and Signs
expand / collapseDiagnosis
Chest x-ray
Sputum examination
Tests of other specimens
Skin testing
Other tests
Prognosis
expand / collapseTreatment
Hospitalization
Public health considerations
First-line drugs
Second-line drugs
Drug resistance
Treatment regimens
Other treatments
expand / collapse Screening
Booster reaction
Treatment of LTBI
expand / collapse Prevention
Vaccination
expand / collapseSpecial Populations
Children
The elderly
HIV-infected patients
expand / collapse Extrapulmonary Tuberculosis
Miliary TB
Genitourinary TB
TB meningitis
TB peritonitis
TB pericarditis
TB lymphadenitis
TB of bones and joints
Gastrointestinal TB
TB of the liver
Other sites
Diagnosis
Treatment
expand / collapse Other Mycobacterial Infections Resembling Tuberculosis
Pulmonary disease
Lymphadenitis
Cutaneous disease
Wounds and foreign body infections
Disseminated disease
expand / collapse Leprosy
Epidemiology
expand / collapsePathophysiology
Classification
expand / collapseSymptoms and Signs
Complications
Leprosy reactions
Diagnosis
expand / collapseTreatment
Multibacillary
Paucibacillary
Drugs for leprosy
Leprosy reactions
Prevention
Fungi
expand / collapseOverview of Fungal Infections
Opportunistic fungal infections
Primary fungal infections
Diagnosis
expand / collapse Antifungal Drugs
expand / collapse Amphotericin B
Formulations
Adverse effects
expand / collapseAzole Antifungals
Fluconazole
Itraconazole
Posaconazole
Voriconazole
Echinocandins
Flucytosine
expand / collapse Aspergillosis
Pathophysiology
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Blastomycosis
expand / collapseSymptoms and Signs
Pulmonary
Extrapulmonary
Diagnosis
Treatment
expand / collapse Candidiasis (Invasive)
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Coccidioidomycosis
Pathophysiology
expand / collapseSymptoms and Signs
Primary coccidioidomycosis
Progressive coccidioidomycosis
Diagnosis
Treatment
expand / collapse Cryptococcosis
Pathophysiology
expand / collapseSymptoms and Signs
CNS
Lungs
Skin
Diagnosis
expand / collapseTreatment
Patients without AIDS
Patients with AIDS
expand / collapse Histoplasmosis
Symptoms and Signs
Diagnosis
Prognosis
Treatment
expand / collapse Mucormycosis
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Mycetoma
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Paracoccidioidomycosis
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Pigmented Fungi
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Sporotrichosis
Symptoms and Signs
Diagnosis
Treatment
Miscellaneous Opportunistic Fungi
Approach to Parasitic Infections
expand / collapseApproach to Parasitic Infections
Protozoa
Helminths
expand / collapseDiagnosis
GI tract parasites
Serologic testing for parasitic infections
Treatment
Prevention
Nematodes (Roundworms)
Introduction
Angiostrongyliasis
expand / collapse Anisakiasis
Diagnosis
Treatment
expand / collapse Ascariasis
Pathophysiology
Etiology
Symptoms and Signs
Diagnosis
Treatment
Prevention
expand / collapse Dracunculiasis
Pathophysiology
Symptoms and Signs
Diagnosis
Treatment
Prevention
expand / collapse Filarial Nematode Infections
Dirofilariasis
expand / collapse Loiasis
Symptoms and Signs
Diagnosis
Treatment
Prevention
expand / collapse Bancroftian and Brugian Lymphatic Filariasis
Etiology
Symptoms and Signs
Diagnosis
Treatment
Prevention
expand / collapse Onchocerciasis
Pathophysiology
Etiology
expand / collapseSymptoms and Signs
Nodules
Dermatitis
Eye disease
Diagnosis
Treatment
Prevention
expand / collapse Hookworm Infection
Pathophysiology
expand / collapseEtiology
Other hookworms
Symptoms and Signs
Diagnosis
Treatment
Prevention
expand / collapse Pinworm Infestation
Pathophysiology
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Strongyloidiasis
Pathophysiology
expand / collapseSymptoms and Signs
Hyperinfection syndrome
Diagnosis
Treatment
Prevention
expand / collapse Toxocariasis
Pathophysiology
expand / collapseSymptoms and Signs
Visceral larva migrans (VLM)
Ocular larva migrans (OLM)
Diagnosis
Treatment
Prevention
Baylisascariasis
expand / collapse Trichinosis
Pathophysiology
Symptoms and Signs
Diagnosis
Treatment
Prevention
expand / collapse Trichuriasis
Diagnosis
Treatment
Trematodes (Flukes)
Introduction
expand / collapse Clonorchiasis
Pathophysiology
Symptoms and Signs
Diagnosis
Treatment
Fascioliasis
Fasciolopsiasis
Heterophyiasis and Related Trematode Infections
Opisthorchiasis
expand / collapse Paragonimiasis
Pathophysiology
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Schistosomiasis
Etiology
Pathophysiology
expand / collapseSymptoms and Signs
Schistosome dermatitis
Acute schistosomiasis
Chronic schistosomiasis
Diagnosis
Treatment
Prevention
Dermatitis Caused by Avian and Animal Schistosomes
Cestodes (Tapeworms)
expand / collapseOverview of Tapeworm Infections
Symptoms and Signs
Diagnosis
Treatment
Prevention
expand / collapse Diphyllobothriasis
Treatment
Dipylidium Caninum Infection
expand / collapse Echinococcosis
Etiology
Pathophysiology
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Hymenolepis Nana Infection
Treatment
Hymenolepis Diminuta Infection
Coenurosis (Taenia Multiceps or T. Serialis Infection)
Sparganosis
expand / collapse Taeniasis Saginata
Treatment
expand / collapse Taeniasis Solium and Cysticercosis
expand / collapseSymptoms and Signs
Cysticercosis
Diagnosis
Treatment
Intestinal Protozoa
expand / collapseOverview of Intestinal Protozoan Infections
Diagnosis
expand / collapse Amebiasis
Pathophysiology
expand / collapseSymptoms and Signs
Amebic dysentery
Chronic amebic infection
Extraintestinal amebic disease
expand / collapseDiagnosis
Intestinal infection
Extraintestinal infection
Treatment
Prevention
expand / collapse Cryptosporidiosis
Pathophysiology
Epidemiology
Symptoms and Signs
Diagnosis
Treatment
Prevention
expand / collapse Cystoisosporiasis and Cyclosporiasis
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Giardiasis
Symptoms and Signs
Diagnosis
Treatment
Prevention
expand / collapse Microsporidiosis
Symptoms and Signs
Diagnosis
Treatment
Extraintestinal Protozoa
Introduction
expand / collapse African Trypanosomiasis
Pathophysiology
expand / collapseSymptoms and Signs
Cutaneous
Hemolymphatic
CNS
Diagnosis
expand / collapseTreatment
Without CNS involvement
With CNS involvement
Prevention
expand / collapse Babesiosis
Etiology
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Chagas Disease
Pathophysiology
Etiology
expand / collapseSymptoms and Signs
Acute
Chronic
Diagnosis
Treatment
Prevention
expand / collapseFree-Living Amebas
Primary Amebic Meningoencephalitis
Granulomatous Amebic Encephalitis
expand / collapse Amebic Keratitis
Treatment
Prevention
expand / collapse Leishmaniasis
Etiology
Pathophysiology
Symptoms and Signs
Diagnosis
expand / collapseTreatment
Cutaneous leishmaniasis
Visceral leishmaniasis
Mucosal leishmaniasis
Prevention
expand / collapse Malaria
expand / collapsePathophysiology
Falciparum malaria
Resistance to infection
Symptoms and Signs
Diagnosis
expand / collapse Treatment
Treatment of the acute attack
Curative therapy for hypnozoites
expand / collapse Prevention
Chemoprophylaxis
expand / collapse Toxoplasmosis
Pathophysiology
expand / collapseSymptoms and Signs
Acute toxoplasmosis
CNS toxoplasmosis
Congenital toxoplasmosis
Ocular toxoplasmosis
Disseminated infection and non-CNS involvement
Diagnosis
Treatment
Prevention
Viruses
expand / collapseOverview of Viruses
Viruses and cancer
Diagnosis
expand / collapseTreatment
Antiviral drugs
Interferons
expand / collapsePrevention
Vaccines
Immune globulins
Protective measures
expand / collapseTypes of Viral Disorders
Respiratory infections
GI infections
Exanthematous infections
Hepatic infections
Neurologic infections
Hemorrhagic fevers
Cutaneous or mucosal infections
Multisystem diseases
Nonspecific febrile illness
Respiratory Viruses
expand / collapseOverview of Viral Respiratory Infections
Diagnosis
Treatment
expand / collapse Adenovirus Infections
Symptoms and Signs
Diagnosis
Treatment
Prevention
expand / collapse Common Cold
Symptoms and Signs
Diagnosis
Treatment
Prevention
expand / collapse Influenza
Influenza antigens
expand / collapseEpidemiology
At-risk groups
expand / collapseSymptoms and Signs
Complications
Diagnosis
Prognosis
expand / collapse Treatment
Drugs for influenza
expand / collapsePrevention
Vaccines
Vaccination recommendations
Antiviral drugs
Avian Influenza
Diagnosis
Treatment
expand / collapse H1N1 Swine Influenza
Symptoms and Signs
Diagnosis
Treatment
Prevention
Parainfluenza Virus Infections
expand / collapse Respiratory Syncytial Virus (RSV) and Human Metapneumovirus Infections
Symptoms and Signs
Diagnosis
Treatment
Prevention
Coronaviruses and Severe Acute Respiratory Syndrome (SARS)
Herpesviruses
expand / collapseOverview of Herpesvirus Infections
Drug Treatment of Herpesviruses
expand / collapse Chickenpox
expand / collapseSymptoms and Signs
Complications
Diagnosis
Prognosis
Treatment
expand / collapsePrevention
Vaccination
Postexposure prophylaxis
expand / collapse Cytomegalovirus (CMV) Infection
Diagnosis
expand / collapseTreatment
Retinitis
Other CMV infections
Prevention
expand / collapse Herpes Simplex Virus (HSV) Infections
expand / collapseDiseases Caused by Herpes Simplex
Mucocutaneous infection
Herpes simplex keratitis
Neonatal herpes simplex
CNS infection
Diagnosis
expand / collapse Treatment
Mucocutaneous infection
Herpes simplex keratitis
Neonatal herpes simplex
CNS infection
expand / collapse Herpes Zoster
Symptoms and Signs
Diagnosis
Treatment
Prevention
expand / collapse Infectious Mononucleosis
Pathophysiology
Complications
expand / collapseSymptoms and Signs
Complications
Diagnosis
Prognosis
Treatment
expand / collapse Roseola Infantum
Symptoms and Signs
Diagnosis
Treatment
Pox Viruses
Monkeypox
expand / collapse Smallpox
Pathophysiology
Symptoms and Signs
Diagnosis
Treatment
expand / collapsePrevention
Vaccine complications
Postexposure prophylaxis
Key Points
Enteroviruses
expand / collapseOverview of Enterovirus Infections
Diseases Caused by Enteroviruses
Aseptic meningitis
Hemorrhagic conjunctivitis
Myopericarditis
Neonatal infection
Rashes
Respiratory infections
Diagnosis
Treatment
expand / collapse Epidemic Pleurodynia
Diagnosis
Treatment
Hand-Foot-and-Mouth Disease
expand / collapse Herpangina
Diagnosis
Treatment
expand / collapse Poliomyelitis
Pathophysiology
expand / collapseSymptoms and Signs
Abortive
Paralytic and nonparalytic
Diagnosis
expand / collapsePrognosis
Postpoliomyelitis syndrome
Treatment
Prevention
Arboviridae, Arenaviridae, and Filoviridae
expand / collapseOverview of Arbovirus, Arenavirus, and Filovirus Infections
Treatment
Prevention
expand / collapse Dengue
Symptoms and Signs
Diagnosis
Treatment
Prevention
expand / collapse Dengue Hemorrhagic Fever
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Hantavirus Infection
expand / collapse Hemorrhagic Fever With Renal Syndrome (HFRS)
Symptoms and Signs
Diagnosis
Prognosis
Treatment
expand / collapse Hantavirus Pulmonary Syndrome (HPS)
Symptoms and Signs
Diagnosis
Prognosis
Treatment
expand / collapse Lassa Fever
Symptoms and Signs
Diagnosis
Prognosis
Treatment
Prevention
expand / collapse Lymphocytic Choriomeningitis
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Marburg and Ebola Virus Infections
Symptoms and Signs
Diagnosis
Treatment
Prevention
expand / collapse Yellow Fever
Symptoms and Signs
Diagnosis
Treatment
Prevention
expand / collapseOther Infections
Chikungunya disease
Mayaro disease
Tick-borne encephalitis
California encephalitis
Omsk hemorrhagic fever and Kyasanur Forest disease
Rift Valley fever
Human Immunodeficiency Virus (HIV)
expand / collapseHuman Immunodeficiency Virus Infection
Transmission
Epidemiology
expand / collapsePathophysiology
Immune system
Other tissues
Disease progression
Symptoms and Signs
expand / collapseDiagnosis
HIV-related conditions
Screening
Prognosis
expand / collapse Treatment
Adverse effects
End-of-life care
expand / collapse Prevention
Prevention of transmission
Postexposure prophylaxis (PEP)
Prevention of opportunistic infections
Vaccination
expand / collapse Cancers Common in HIV-Infected Patients
Non-Hodgkin lymphoma
Primary CNS lymphoma
Cervical cancer
Squamous cell cancer of the anus and vulva
Other Viruses
expand / collapse Measles
Pathophysiology
expand / collapseSymptoms and Signs
Complications
Diagnosis
Prognosis
Treatment
expand / collapsePrevention
Postexposure prophylaxis
expand / collapse Mumps
expand / collapseSymptoms and Signs
Complications
Diagnosis
Prognosis
Treatment
Prevention
expand / collapse Rubella
Symptoms and Signs
Diagnosis
Treatment
Prevention
Progressive Rubella Panencephalitis
expand / collapse Subacute Sclerosing Panencephalitis (SSPE)
Symptoms and Signs
Diagnosis
Prognosis
Treatment
Sexually Transmitted Diseases (STDs)
Overview of Sexually Transmitted Diseases
expand / collapse Chancroid
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Chlamydial, Mycoplasmal, and Ureaplasmal Infections
Symptoms and Signs
expand / collapseDiagnosis
Screening
Treatment
expand / collapse Genital Warts
Etiology
Symptoms and Signs
Diagnosis
Treatment
Prevention
expand / collapse Gonorrhea
Symptoms and Signs
expand / collapseDiagnosis
Men with urethritis
Women with genital symptoms or signs
Pharyngeal or rectal exposures (either sex)
Arthritis, DGI, or both
Screening
expand / collapseTreatment
Sex partners
expand / collapse Granuloma Inguinale
Symptoms and Signs
Diagnosis
Treatment
expand / collapse Lymphogranuloma Venereum (LGV)
Symptoms and Signs
Diagnosis
Treatment
Sexually Transmitted Enteric Infections
expand / collapse Syphilis
expand / collapseSymptoms and Signs
Primary syphilis
Secondary syphilis
Latent period
Late or tertiary syphilis
Other lesions
expand / collapse Diagnosis
Diagnostic tests for syphilis
Primary syphilis
Secondary syphilis
Latent syphilis
Late or tertiary syphilis
expand / collapseTreatment
Primary, secondary, and latent syphilis
Late or tertiary syphilis
Jarisch-Herxheimer reaction (JHR)
Posttreatment surveillance
expand / collapse Trichomoniasis
Symptoms and Signs
Diagnosis
Treatment
Audio
Figures
Photographs
Sidebars
Tables
Videos

Copyright     © 2010-2013 Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc., Whitehouse Station, N.J., U.S.A.    Privacy    Terms of Use