Psittacosis the 1920s–1930s outbreak in humans, a specific reservoir for serovar E has not been identified. The M56 and WC serovars were isolated during outbreaks in mammals. Treatment is usually with antibiotics, such as doxycycline or tetracycline, and can be administered through drops in the water or injections. Many strains of "C. psittaci" are susceptible to bacteriophages. Psittacosis was one of more than a dozen agents that the United States researched as potential biological weapons before the nation suspended its biological weapons program. The most high-profile death caused by parrot fever is that of Thea Selway, mother of Radiohead drummer and
Derzsy's disease Derzsy's disease Derzsy's disease is caused by Anseriform dependoparvovirus 1, in the "Parvoviridae" family. It affects geese and Muscovy ducks. The virus is shed in the faeces and thus transmission is horizontal, via the direct faecal-oral route and also indirectly via fomites. Vertical transmission is also possible. Clinical disease only occurs in young geese and ducks between birth and 4–5 weeks of age. Several genotypes have been described. The genotype is based upon the sequence of the VP3 protein. Acute disease leads to death in most birds between the ages of 7–10 days. Clinical signs are quite limited in those