Borrelia parkeri

Borrelia parkeri is a species of spirochete bacteria in the genus Borrelia. It is named after Mazyck P. Ravenel and Joseph E. Parker, who first isolated the bacterium. This bacterium is known to cause tick-borne relapsing fever (TBRF) in humans.

Taxonomy[edit | edit source]

Borrelia parkeri is a member of the Borrelia genus, which is part of the larger Spirochaetaceae family. The genus Borrelia is named after French biologist Amédée Borrel. The species name, parkeri, honors the scientists who first isolated the bacterium.

Morphology[edit | edit source]

Like other spirochetes, Borrelia parkeri is a long, slender, and spiral-shaped bacterium. It is Gram-negative, meaning it does not retain the violet stain used in the Gram stain procedure. Instead, it takes up the red counterstain.

Pathogenesis[edit | edit source]

Borrelia parkeri is transmitted to humans through the bite of infected Ornithodoros ticks. Once in the human body, the bacterium can cause tick-borne relapsing fever. This disease is characterized by recurring episodes of fever, headache, muscle and joint aches, and nausea.

Diagnosis and Treatment[edit | edit source]

Diagnosis of Borrelia parkeri infection is typically based on clinical symptoms and confirmed by laboratory testing. The most common test is a blood smear, which can reveal the presence of the bacterium. Treatment usually involves antibiotics, such as doxycycline or penicillin.

Prevention[edit | edit source]

Prevention of Borrelia parkeri infection primarily involves avoiding tick bites. This can be achieved by wearing protective clothing and using insect repellents when in areas where ticks are common.