Naturally occurring Ehrlichia chaffeensis infection in two prosimian primate species: ring-tailed lemurs (Lemur catta) and ruffed lemurs (Varecia variegata).

A naturally occurring infection of Ehrlichia chaffeensis in lemurs is described. DNA of Ehrlichia chaffeensis was identified by polymerase chain reaction in peripheral blood from six of eight clinically ill lemurs. Organisms were cultured from the blood of one lemur exhibiting clinical and hematologic abnormalities similar to those of humans infected with E. chaffeensis.