Research overview: babesiosis and tick-borne hemoparasites in wild felids

Babesia are tick-transmitted protozoa that infect red blood cells and can cause anemia, and they have featured prominently in felid disease, most dramatically in the drought-linked mortality of Serengeti lions. This overview surveys babesiosis in wild cats, the diversity of Babesia species infecting felids, the usually tolerated carriage that can turn lethal under stress or co-infection, and the molecular surveys documenting these parasites. It examines the conditions, including heavy tick exposure and concurrent disease, that precipitate clinical babesiosis. The synthesis connects this hemoparasite to the broader theme of context-dependent disease in felids. It aims to help readers understand babesiosis as a parasite usually held in check that can become a serious or fatal disease when environmental stress, prey condition and other infections combine against the host.