Oncohema Key

Ecthyma Contact Precautions Ecthyma is a bacterial infection of the skin that results in an ulcerative pyoderma involving the lower epidermis and dermis. It is considered a deeper form of…

Ebola Virus Infection Contact Precautions Droplet Precautions One of the most frightening viruses to come out of the African subcontinent, the Ebola virus first appeared in 1976. More than 400…

Dysentery Dysentery is an inflammatory disorder of the lower digestive tract that involves frequent passage of severe diarrhea-type stool. The stool may contain mucus and blood, depending on the causative…

Diphyllobothriasis Diphyllobothriasis is a cestode, or tapeworm, infection. Tapeworms are capable of self-fertilization; however, Diphyllobothrium eggs complete their development in an aquatic environment and then become infective. Humans are the…

Diphtheria Droplet Precautions Contact Precautions Diphtheria is an acute, highly contagious, toxin-mediated infection caused by Corynebacterium diphtheriae, a gram-positive rod that usually infects the respiratory tract, primarily the tonsils, nasopharynx,…

Dermatophytosis Dermatophytosis (tinea) is a group of superficial fungal infections usually classified according to their anatomic location. Dermatophytosis may affect the scalp (tinea capitis), the bearded skin of the face…

Dengue Fever Dengue fever, a virus that causes flu-like symptoms, is transmitted by the bite of an infected mosquito. The incubation period is generally 5 to 10 days. Dengue fever…

Cytomegalovirus Infection Cytomegalovirus (CMV) infection is caused by the cytomegalovirus, a deoxyribonucleic acid, ether-sensitive virus belonging to the herpes family. Also known as generalized salivary gland disease, CMV infection occurs…

Cyclospora Cayetanensis Infection C. cayetanensis is a protozoan parasite from the phylum Apicomplexa, a group of organisms closely related to pathogens that affect birds. These parasites cause a GI infection…

Cryptosporidiosis Contact Precautions Cryptosporidiosis, also known as “crypto,” is a highly contagious intestinal infection that typically results in acute, self-limiting diarrhea. However, in immunocompromised patients—who contract it more often—cryptosporidiosis causes…