Psittacosis known serovars. All should be considered to be readily transmissible to humans. "C. psittaci" serovar A is endemic among psittacine birds and has caused sporadic zoonotic disease in humans, other mammals, and tortoises. Serovar B is endemic among pigeons, has been isolated from turkeys, and has also been identified as the cause of abortion in a dairy herd. Serovars C and D are occupational hazards for slaughterhouse workers and for people in contact with birds. Serovar E isolates (known as Cal-10, MP, or MN) have been obtained from a variety of avian hosts worldwide, and although they were associated with
Contagious bovine pleuropneumonia establish the Bureau of Animal Industry, set up in 1884 to eradicate the disease, which it succeeded in doing by 1892. Louis Willems, a Belgian doctor, began pioneering work in the 1850s on animal inoculation against the disease. The bacteria are widespread in Africa, the Middle East, Southern Europe, as well as parts of Asia. It is an airborne species, and can travel up to several kilometres in the right conditions. Contagious bovine pleuropneumonia came to Australia on a shipment of five head of cattle from England in 1858, imported by one of Melbourne's earliest settlers Mr Boadle. Three weeks