A75-A79: Rickettsioses

A77: Spotted fever [tick-borne rickettsioses]

Spotted fever, also known as tick-borne rickettsioses, refers to a group of infectious diseases caused by bacteria of the genus Rickettsia. These bacteria are primarily transmitted to humans through the bite of infected ticks. Common symptoms associated with these conditions often include fever, headache, rash, and muscle aches, which typically onset about a week following a tick bite. In severe cases, the disease can lead to serious complications such as damage to the heart, lungs, and brain. Spotted fever group rickettsioses are characterized by progression from mild, non-specific symptoms initially, to more severe manifestations if not treated effectively. The severity of disease can vary greatly based on the specific type of Rickettsia causing the infection and the individual's immune response.