Oncohema Key

Bartonella Quintana Infection Contact Precautions Bartonella quintana, a gram-negative rod belonging to the Rickettsiaceae family, restricts itself to human hosts. Typically transmitted by the human body louse (a small, wingless…

Aspergillosis Aspergillosis is an opportunistic infection caused by fungi of the genus Aspergillus, usually A. fumigatus, A. flavus, and A. niger. Aspergillosis occurs in four major forms: aspergilloma, which produces…

Anthrax Anthrax, also called wool-sorter’s disease or ragpicker’s disease, is an acute bacterial infection that occurs most commonly in hoofed animals, such as cattle, sheep, goats, and horses. It can…

Amebiasis Amebiasis, also known as amebic dysentery or intestinal amebiasis, is an acute or chronic protozoal infection caused by Entamoeba histolytica. This infection produces varying degrees of illness, from no…

Adenovirus Infection Droplet Precautions Contact Precautions Adenoviruses are a group of viruses that infect the tissue lining the respiratory tract, eyes, intestines, and urinary tract. They cause acute, self-limiting, febrile…

Actinomycosis Actinomycosis is a subacute-chronic bacterial infection primarily caused by the gram-positive anaerobic bacillus Actinomyces israelii, which produces granulomatous and suppurative lesions with multiple abscesses. Common sites for infection are…

Acinetobacter Infection Contact Precautions Acinetobacter is a group of gram-negative, nonmotile bacteria most commonly found in the soil or water. The bacteria have also been found on the skin of…

Understanding and Preventing Infectious Diseases Despite improved treatment and prevention strategies, including powerful antibiotics, complex vaccines, and modern sanitation practices, infection continues to cause a great deal of serious illness…