• C. diff. Infection [Clostridium difficile Infection]
  • C. gattii cryptococcosis
  • C. neoformans cryptococcosis
  • Campylobacter Infection [Campylobacteriosis]
  • Campylobacteriosis — see Campylobacter Infection
  • Capillaria Infection [Capillariasis]
  • Capillariasis — see Capillaria Infection
  • Carbapenem resistant Klebsiella pneumonia (CRKP) — see Klebsiella pneumoniae
  • Carbapenem-resistant Enterobacteriaceae (CRE)
  • Cardiovascular Health — see Heart Disease
  • Carpal Tunnel Syndrome — see Ergonomic and Musculoskeletal Disorders
  • Carrión’s disease [Bartonella bacilliformis Infection]
  • Cat Flea Tapeworm — see Tapeworm, Dog and Cat Flea
  • Cat Scratch Disease from Pets
  • Cats, Infections from
  • CCHF (Crimean-Congo hemorrhagic fever)
  • CDI (Chronic Disease Indicators )
  • Cercarial Dermatitis — see Swimmer’s Itch
  • Cerebral Palsy
  • CFS (Chronic Fatigue Syndrome)
  • Chagas Disease [Trypanosoma cruzi Infection]
  • Chapare Hemorrhagic Fever (CHHF)
  • Chest Cold — see Bronchitis
  • CHHF (Chapare Hemorrhagic Fever)
  • Chickenpox [Varicella Disease]
  • Chikungunya Fever (CHIKV)
  • CHIKV (Chikungunya Fever)
  • Childhood Arthritis
  • Childhood Injuries
  • Childhood Overweight and Obesity
  • Children’s Cough and Cold Medicines — see Cough and Cold Medicines
  • Chlamydia [Chlamydia trachomatis Disease]
  • Chlamydia trachomatis Disease — see Chlamydia
  • Chlamydophila (Chlamydia) pneumoniae Infection
  • Cholera [Vibrio cholerae Infection]
  • Chronic Disease Indicators (CDI)
  • Chronic Disease Prevention
  • Chronic Fatigue Syndrome (CFS)
  • Chronic Kidney Disease (CKD)
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Chronic Wasting Disease (CWD)
  • Ciguatera Fish Poisoning
  • Ciguatoxin — see Marine Toxins
  • CJD, Classic (Classic Creutzfeldt-Jakob Disease)
  • Classic Creutzfeldt-Jakob Disease (CJD, Classic)
  • Clonorchiasis — see Clonorchis Infection
  • Clonorchis Infection [Clonorchiasis]
  • Clostridium botulinum Infection — see Botulism
  • Clostridium difficile Infection — see C. diff. Infection
  • Clostridium perfringens infection
  • Clostridium tetani Infection — see Tetanus Disease
  • Clotting Disorders
  • CMV (Cytomegalovirus Infection)
  • Coal Workers’ Pneumoconioses — see Black Lung
  • Coccidioidomycosis — see Valley Fever
  • Cold, Common
  • Colorado Tick Fever (CTF)
  • Common Cold — see Cold, Common
  • Concussion — see Traumatic Brain Injury
  • Conjunctivitis — see Pink Eye
  • Cooley’s Anemia
  • COPD (Chronic Obstructive Pulmonary Disease)
  • Corynebacterium diphtheriae Infection — see Diphtheria
  • Cough and Cold Medicines
  • Coxiella burnetii Infection — see Q Fever
  • CRE (Carbapenem-resistant Enterobacteriaceae)
  • Creutzfeldt-Jakob Disease, Classic — see Classic Creutzfeldt-Jakob Disease
  • Crimean-Congo hemorrhagic fever (CCHF) [Nairovirus Infection]
  • CRKP (Carbapenem resistant Klebsiella pneumonia )
  • Crohn’s Disease — see Inflammatory Bowel Disease
  • Cronobacter Infection
  • Cryptococcosis, C. gattii. — see C. gattii cryptococcosis
  • Cryptococcosis, C. neoformans — see C. neoformans cryptococcosis
  • Cryptosporidiosis — see Cryptosporidium Infection
  • Cryptosporidium Infection [Cryptosporidiosis]
  • CTF (Colorado Tick Fever)
  • CWD (Chronic Wasting Disease)
  • cyanobacterial algal bloom-associated illness — see Harmful Algal Bloom (HAB)-Associated Illness
  • Cyclospora Infection [Cyclosporiasis]
  • Cyclosporiasis — see Cyclospora Infection
  • Cysticercosis
  • Cystoisospora Infection [Cystoisosporiasis]
  • Cystoisosporiasis — see Cystoisospora Infection
  • Cytomegalovirus Infection (CMV)