hepatic hemorrhage, hemocoelom, and sudden death due to haemoproteus infection in passerine birds: eleven cases. | haemoproteus spp. are ancient apicomplexan hemoparasites that have undergone extensive coevolution with their natural hosts and are typically species specific, with inapparent or minimal pathogenicity. a promiscuous genotype of haemoproteus capable of undergoing host switching on a familial level was identified. this protozoan caused severe disease with high mortality in 6 species of exotic passerine birds housed in california at the san diego zoo's wild animal park: surinam crested oropendola ( ... | 2008 | 18460616 |