Cadmium, chronic toxic effect
Campylobacter enteritis
Candida paronychia
Capnocytophaga infection
Carbon disulfide, chronic toxic effect
Cataract, chemical or radiation induced
Cat-scratch disease
Cheese washer lung
Chloracne
Cholangiocarcinoma
Cholera
Chromium, chronic toxic effect
Chromomycosis
Chronic beryllium disease
Chronic renal failure
Ciguatera fish poisoning
Coal workers' pneumoconiosis
Coccidioidomycosis
Colorado tick fever
Colorectal cancer
Compost HP
Contact dermatitis, allergic
Contact dermatitis, irritant
Contact dermatitis, photoallergic
Contact dermatitis, photoirritant
Contact urticaria
Coronavirus infections
Creutzfeldt-Jacob disease
Crimean-Congo hemorrhagic fever
Cryptosporidiosis
Cutaneous larva migrans
CWP, complicated
Cyclospora cayetanensis infection
Cytomegalovirus infection