Relapsing fever

Relapsing fever is a vector-borne disease caused by certain species of spirochete bacteria in the genus Borrelia. The disease is characterized by recurring episodes of fever, hence the name. It is transmitted through the bite of infected lice or soft-bodied ticks.

Etiology

Relapsing fever is caused by various species of Borrelia bacteria. The most common species causing the disease are Borrelia recurrentis, Borrelia duttonii, and Borrelia hermsii. These bacteria are spirochetes, a type of bacteria characterized by their long, spiral shape.

Transmission

The disease is transmitted through the bite of infected lice or soft-bodied ticks. The specific vector varies depending on the species of Borrelia involved. For example, Borrelia recurrentis is transmitted by lice, while Borrelia duttonii and Borrelia hermsii are transmitted by ticks.

Symptoms

The primary symptom of relapsing fever is a recurring fever that lasts for several days, followed by a period of no symptoms, and then another episode of fever. Other symptoms can include headache, muscle aches, joint pain, nausea, vomiting, and abdominal pain.

Diagnosis

Relapsing fever is diagnosed based on the patient's symptoms and history of exposure to lice or ticks. Laboratory tests can also be used to confirm the diagnosis, including blood tests to detect the presence of Borrelia bacteria.

Treatment

Treatment for relapsing fever typically involves antibiotics to kill the Borrelia bacteria. The most commonly used antibiotics are doxycycline, tetracycline, and penicillin.

Prevention

Prevention of relapsing fever involves avoiding exposure to lice and ticks. This can be achieved through the use of insect repellents, wearing protective clothing, and checking for ticks after spending time in wooded or grassy areas.

Relapsing fever Resources
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