Borrelia anserina
Borrelia anserina is a spirochete, highly motile, Gram-negative helical bacterium that is responsible for causing avian spirochetosis, an acute, endemic disease of birds in tropical and subtropical regions.
Transmission: B. anserina is primarily spread by Argas ticks (fowl ticks) and other biting arthropods (mosquitoes, mites). Direct transmission via the faeco-oral route also occurs.