Dealing with Anaplasmosis in your herd
Dr. Michelle Arnold
Anaplasma marginale is an organism that lives in red blood cells and causes the only major tick-borne disease in the US affecting cattle production. Transmission is by transfer of infected red blood cells from infected to susceptible cattle. Ticks (Dermacentor spp.) are biological vectors and are of greatest importance because A. marginale replicates within the tick and can be maintained there for up to a year.