What is tick-borne relapsing fever?

Tick-borne relapsing fever is a bacterial infection transmitted by soft ticks of the genus _Ornithodoros_. The disease causing bacterium, _Borrelia spp_., is carried by the ticks and transmitted to humans through the bite.

Symptoms:

- Sudden onset of fever, headache, muscle aches, weakness, and fatigue

- The fever typically lasts 3-10 days and may recur several times (relapsing fever)

- Other symptoms may include nausea, vomiting, rash, and joint pain

Modes of transmission:

- Bite of infected soft ticks: _Ornithodoros spp_

- Transfusion of blood or blood products from an infected person

- Congenital transmission (from mother to child during pregnancy)

Treatment:

- Antibiotics such as doxycycline, penicillin, or erythromycin

- Supportive measures to manage symptoms

Prevention:

- Avoid areas known to have tick-borne relapsing fever

- Use insect repellent containing DEET when in tick-infested areas

- Wear protective clothing, including long-sleeved shirts and pants

- Tuck pants into socks

- Check for ticks after spending time outdoors

- Remove ticks promptly and properly

Tick-borne relapsing fever is typically not fatal but can be a severe illness. Early diagnosis and treatment are important to prevent complications and recurrent episodes of fever. Travelers and individuals living in areas where the disease is endemic should take necessary precautions to reduce their risk of infection.