Diseases and conditions

Find information, tools and facts about symptoms, risks and how to prevent, treat and manage human diseases and illnesses.

Disease/Condition Name Sub-category
Ticks and tick-borne diseases Zoonotic (tick-borne)
Fungal meningitis Fungal infection affecting brain and spinal cord
Respiratory infectious diseases (such as flu, COVID-19, RSV) Respiratory viruses
Respiratory syncytial virus (RSV) Respiratory diseases
Mpox (monkeypox) Zoonotic (animals), sexually transmitted infections (STI) (vaccine-preventable)
Acute flaccid myelitis Neurological condition
Acute flaccid paralysis Other
Acute severe hepatitis in children Liver diseases
Acute respiratory diseases (Adenovirus) Respiratory diseases
African trypanosomiasis (sleeping sickness) Zoonotic (tsetse fly)
Allergies (airborne) Allergies and intolerances (respiratory)
Allergies (dermatitis) Allergies and intolerances (skin)
Allergies (latex) Allergies and intolerances (skin, respiratory)
Allergies and intolerances (foodborne) Allergies and intolerances (food, digestive)
ALS (amyotrophic lateral sclerosis, Lou Gehrig's disease) Musculoskeletal conditions
Angina Heart and circulation conditions
Anthrax Zoonotic (farm animals)
Anxiety disorders Mental illnesses
Arthritis (rheumatoid, systemic lupus erythematosus, gout, juvenile or childhood) Musculoskeletal conditions (joint)
Atrial fibrillation Heart and circulation conditions
Asbestosis Respiratory diseases
Asthma Respiratory diseases
Athlete's foot (tinea pedis) Skin infections
Autism spectrum disorder Learning disabilities (developmental disorders)
Avian influenza (H5N1 bird flu) Respiratory diseases, zoonotic (birds)
Avian influenza A(H7N9, bird flu) Respiratory diseases, zoonotic (birds)
Bacterial vaginosis Urogenital infections
Beryllium disease Respiratory diseases
Bipolar disorder (manic-depression) Mental illnesses
Blastomycosis Respiratory diseases
Bone cancer (osteosarcoma, chondrosarcoma, ewing sarcomas) Cancers
Botulism Food- and water-borne illnesses (food poisoning)
Breast cancer Cancers
Brucellosis (undulant fever) Food- and water-borne illnesses (food poisoning)
Bursitis Musculoskeletal conditions
C. difficile (Clostridium difficile) Gastrointestinal (enteric) diseases
Camploybacteriosis (Campylobacter) Food- and water-borne illnesses (food poisoning)
Cancer Cancers
Cardiovascular diseases Heart and circulation conditions
Carpal tunnel syndrome (hand paresthesia and weakness) Musculoskeletal conditions (hand)
Cataracts Eye diseases
Cavities Oral diseases (dental)
Celiac disease (gluten-intolerance) Allergies and intolerances (food, digestive)
Cervical cancer Cancers
Chagas disease (American trypanosomiasis) Zoonotic (triatomine bugs)
Chickenpox (Varicella zoster virus) Respiratory diseases (vaccine-preventable)
Chikungunya Zoonotic (mosquito-borne)
Chlamydia Sexually transmitted infections (STI)
Cholera Food- and water-borne illnesses (food poisoning)(vaccine-preventable)
Chronic diseases and conditions Other
Chronic obstructive pulmonary disease (COPD) Respiratory diseases
Ciguatera Food- and water-borne illnesses (food poisoning)
Clostridium perfringens Food- and water-borne illnesses (food poisoning)
Colorado tick fever virus Zoonotic (tick-borne)
Colorectal cancer Cancers
Community-Acquired Methicillin-Resistant Staphylococcus aureus (CA-MRSA) Skin infections
Concussion Brain injuries
Coronavirus infection Respiratory diseases
Creutzfeldt-Jakob Disease (variant CJD, prion disease) Neurological diseases
Cronobacter (Enterobacter sakazakii) Food- and water-borne illnesses (food poisoning)
Cryptococcocus Zoonotic (animals)
Cryptosporidiosis (Cryptosporidium) Food- and water-borne illnesses (food poisoning)
Cyclospora Food- and water-borne illnesses (food poisoning)
Cytomegalovirus Other
De Quervain's disease Musculoskeletal conditions (hand)
Dementia Neurological disease, mental illnesses
Dengue fever Haemorrhagic fever, zoonotic (mosquito-borne)
Depression Mental illnesses
Dermatitis (irritant contact, eczema) Skin infections
Diabetes Metabolic disorders
Diphtheria Respiratory diseases (vaccine-preventable)
Dupuytren's contracture Musculoskeletal conditions (hand)
E. coli (Escherichia coli) infection Food- and water-borne illnesses (food poisoning)
Eating disorders (such as anorexia and bulimia) Mental illnesses
Ebola virus disease (EVD) Haemorrhagic fever
Echovirus Other
Emerging respiratory diseases Respiratory diseases
Epilepsy Neurological diseases
Farmer's lung (hypersensitivity pneumonitis) Allergies and intolerances (respiratory)
Fatigue Other
Fetal alcohol spectrum disorder (FASD) Other
Fibromyalgia syndrome (FMS) Neurological diseases
Flu (influenza) Respiratory diseases (vaccine-preventable)
Foodborne diseases (food poisoning) Food- and water-borne illnesses (food poisoning)
Frostbites Weather related injuries
Ganglion cyst Musculoskeletal conditions
Genital herpes Sexually transmitted infections (STI)
Giardia infection (giardiasis) Food- and water-borne illnesses (food poisoning)
Gonorrhea Sexually transmitted infections (STI)
Gum diseases (such as gingivitis and periodontal disease) Oral diseases (dental)
Group A streptococcus diseases Bacterial infection
Haemophilus influenzae (type b and non-b) Respiratory diseases (vaccine-preventable)
Hantavirus Zoonotic (animals)
Hearing loss Ear diseases
Heart attack Heart and circulation conditions
Heart diseases Heart and circulation conditions
Heart valve disorders Heart and circulation conditions
Hepatitis Liver diseases
Hepatitis A Food- and water-borne illnesses (food poisoning)/Liver diseases (vaccine-preventable)
Hepatitis B Liver diseases, Sexually transmitted infections (STI) (vaccine-preventable)
Hepatitis C Liver diseases, Sexually transmitted infections (STI)
Hepatitis D Liver diseases
Hepatitis E Food- and water-borne illnesses (food poisoning)/Liver diseases
Hepatitis G Liver diseases
High cholesterol Heart and circulation conditions
Histoplasmosis Respiratory diseases
HIV and AIDS (human immunodeficiency virus, acquired immune deficiency syndrome) Sexually transmitted infections (STI)
Human influenza A(H1N2)v with swine origin Respiratory diseases
Human Papillomavirus (HPV) Sexually transmitted infections (STI) (vaccine-preventable)
Hypertension - see High blood pressure Heart and circulation conditions
Hypothenar hammer syndrome Musculoskeletal conditions (hand)
Hypothermia Weather related injuries
Inflammatory bowel disease (IBD) Digestive diseases
Invasive meningococcal disease (meningitis) (vaccine-preventable)
Invasive pneumococcal disease Respiratory diseases (vaccine-preventable)
Japanese encephalitis Zoonotic (mosquito-borne)(vaccine-preventable)
Lassa fever Haemorrhagic fever
Legionnaires' disease and Pontiac fever (Legionellosis) Respiratory diseases
Leishmaniasis Zoonotic (sand flies)
Leprosy Skin infections
Leptospirosis Zoonotic (animals)
Listeriosis (Listeria) Food- and water-borne illnesses (food poisoning)
Lung cancer Cancers (respiratory)
Lyme disease Zoonotic (tick-borne)
Lymphocytic choriomeningitis virus (LCMV) Zoonotic (animals)
Lymphogranuloma venereum (LGV) Sexually transmitted infections (STI)
Macular degeneration Eye diseases
Malaria Zoonotic (mosquito-borne)
Marburg virus disease Haemorrhagic fever, zoonotic (animals)
Measles Respiratory diseases (vaccine-preventable)
Mental illnesses Mental illnesses
Middle East respiratory syndrome (MERS) Respiratory diseases
Multiple sclerosis (MS, disseminated sclerosis, encephalomyelitis disseminata) Neurological diseases
Mumps (vaccine-preventable)
Musculoskeletal disorders Musculoskeletal conditions
Neurological conditions (paralysis, seizures, epilepsy) Neurological diseases
Nipah Virus Respiratory diseases, zoonotic (fruit bats)
Non-polio enterovirus (such as coxsackievirus and D-68) Other
Non-Tuberculous Mycobacterium Other
Noroviruses (gastroenteritis, stomach flu) Gastrointestinal (enteric) diseases
Coronavirus disease (COVID-19) Respiratory diseases
Obesity Metabolic disorders
Oral cancer Oral diseases(dental)
Osteoporosis Musculoskeletal conditions (bone)
Pandemic flu Respiratory diseases
Parainfluenza virus Respiratory diseases
Parkinsonism, Parkinson's Disease (PD) Neurological diseases
Pelvic inflammatory disease Urogenital infections
Personality disorders Mental illnesses
Plague Zoonotic (animals)(vaccine-preventable)
Polio (Poliomyelitis) Food- and water-borne illnesses (vaccine-preventable)
Post-traumatic stress disorder (PTSD) Mental illnesses
Powassan virus disease Zoonotic (tick-borne)
Prion diseases Prion diseases
Proctitis Sexually transmitted infections (STI)
Prostate cancer Cancers
Psittacosis Zoonotic (birds)
Pubic lice and scabies Sexually transmitted infections (STI)
Q Fever Zoonotic (animals)
Rabies Zoonotic (animals)(vaccine-preventable)
Raynaud's phenomenon Heart and circulation conditions
Retinopathy Eye diseases
Rhinovirus (rhinitis, common cold) Respiratory diseases
Rift Valley Fever Zoonotic (mosquito-borne)
Ringworm (Dermatophytosis) Skin infections
Rocky Mountain Spotted Fever Zoonotic (tick-borne)
Rotavirus (infants diarrhea, gastroenteritis) Gastrointestinal (enteric) diseases (vaccine-preventable)
Rubella (German measles) Respiratory diseases (vaccine-preventable)
Salmonellosis (Salmonella) Food- and water-borne illnesses (food poisoning)
Sarcoidosis Respiratory diseases
SARS (Severe acute respiratory syndrome) Respiratory diseases
Scarlet fever (scarlatina) Other
Schizophrenia Mental illnesses
Scombroid poisoning Food- and water-borne illnesses (food poisoning)
Seoul virus Zoonotic (animals)
Severe lung illness related to vaping Respiratory diseases
Shellfish poisoning (paralytic amnesic and diarrhetic) Food- and water-borne illnesses (food poisoning)
Shigellosis (Shigella) Food- and water-borne illnesses (food poisoning)
Shingles (herpes-varicella zoster) Skin infections (vaccine-preventable)
Simian foamy virus Zoonotic (animals)
Skin cancer (melanoma and non-melanoma) Cancers
Sleep apnea Respiratory diseases
Smallpox (eradicated) Respiratory diseases (vaccine-preventable)
Staph (Methicillin-Resistant Staphylococcus aureus) Skin infections
Stroke Heart and circulation conditions
Sunburn Weather related injuries
Syphilis Sexually transmitted infections (STI)
Tendon disorders (tendonitis, tendinitis, tenosynovitis) Musculoskeletal conditions (joint)
Tetanus (vaccine-preventable)
Thyroid cancer Cancers
Tick-borne encephalitis Zoonotic (tick-borne)(vaccine-preventable)
Toxoplasmosis Zoonotic (cats)
Travellers' diarrhea Food- and water-borne illnesses (food poisoning)
Trichinellosis Food- and water-borne illnesses
Trichomoniasis Sexually transmitted infections (STI)
Tuberculosis (TB, MTB, tubercle bacillus) Respiratory diseases (vaccine-preventable)
Tularemia Zoonotic (animals)
Typhoid fever (Salmonella typhi) Food- and water-borne illnesses (vaccine-preventable)
Urethritis Urogenital infections, sexually transmitted infections (STI)
Vaccinia virus (poxvirus) Skin infections
Vaginal yeast infection (Vulvovaginal candidiasis) Urogenital infections
Valley fever (Coccidioidomycosis) Other
Venezuelan equine encephalitis virus (arbovirus) Zoonotic (mosquito-borne)
Vesiculovirus (Vesicular Stomatitis Virus) Zoonotic (sand flies, animals)
Vibrios (V. parahaemolyticus, V. vulnificus, V. alginolyticus) Food- and water-borne illnesses (food poisoning)
West Nile virus Zoonotic (mosquito-borne)
Whooping cough (Pertussis) Respiratory diseases (vaccine-preventable)
Windburn Weather related injuries
Worms (intestinal nematode infections) Food- and water-borne illnesses
Yellow Fever Zoonotic (mosquito-borne) (vaccine-preventable)
Zika virus Zoonotic (mosquito-borne)
Chronic pain Other

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