Viral infection, allergic reaction, psittacosis.
Parrots. Psittacosis is a bacterial infection that affects birds, particularly parrots. It can also affect other exotic species such as budgies, cockatiels and macaws as well as ducks, gulls, sparrows and hens. It is an airborne disease that can be passed to people who own or work with exotic birds. There are a minimum of 39 important diseases that people catch directly from animals, 42 important diseases that people get by eating or touching food or water contaminated with animal feces, and at least 48 important diseases that humans can get from the bite of bugs that feasted on an infected animal. Yes. A 'zoonotic' disease is a disease transmitted from animal to human. The list of zoonotic diseases involving birds in general is pretty lengthy, and these include everything from budgies to parrots and outdoor birds (this is why I never bring feathers or other things from outdoor birds into my house). It is a very common fever to the budgies. It is serious in a way that can be transmitted to adults. Once this budgie disease is identified, the budgerigar parakeet is isolated to its private cage so as not to infect the rest of the parakeets and the human beings who could not be aware that it has such a disease. There are diseases that can be transferred to humans from psittacine birds, such as parrots and budgies, such as a viral infection. In addition, people can also show an allergic reaction to feathers and other bird products. This condition is often called pigeon fanciers or budgie fancier's lung. However, the most serious is called psittacosis. With this disease, an agent called Chlamydia psittaci causes it, and the disease is also called ornithosis. Birds can be asymptomatic carriers, and may only fall ill when upset, as stress is a major component in all avian diseases. Parrot fever is a bacterial disease that people can get after accidentally breathing in secretions of infected psittacine birds, including parrots and parakeets, or poultry and wild birds. Birds might or might not show signs of illness from parrot fever.
http://www.bbc.com/news/health-26784579 http://www.mnn.com/health/fitness-well-being/stories/14-diseases-you-can-get-from-your-pets http://talkbudgies.com/diseases-illnesses/29230-there-any-diseases-human-can-catch.html http://www.budgerigarparakeets.com/budgerigar-diseases/most-common-budgerigar-diseases/ http://www.dailymail.co.uk/femail/article-172363/What-diseases-catch-budgies.html http://www.cdc.gov/healthypets/pets/birds.html
what diseases can humans get from budgies