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Psittacine
Beak and Feather Disease
The virus causing this disease is a member of the Circoviridae.
The molecular structure of the genome of the virus is roughly a
2,000 base, circular, single stranded DNA. PBFD virus has a strong
resemblance to Porcine Circovirus as well as to a number of plant
viruses such as the Banana Bungy virus.
The disease is thought to be specific
for psittacines and all psittacine species should be considered
susceptible. Parrots known to be particularly affected by PBFD include,
but are not limited to, Cockatoos, Macaws African Grey Parrots,
Ringneck parakeets, Eclectus Parrots, Lovebirds.
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Causes fatal
infections, primarily in young birds. Older birds may overcome the
disease with few lasting affects. Some believe that these surviving
birds become carriers able to shed the disease at a later date. Others
believe that a percentage of birds are able to eradicate the disease
from their system leaving them with a natural immunity that can be
passed on to their offspring. More...
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Polyoma
This virus, also referred to as Budgerigar Fledgling Disease is a
member of the papovavirus family. Polyoma virus is a 40-50 nm diameter
in size, containing a double-stranded DNA genome of approximately
5000 basepairs.
This pathogen is considered one of the most significant threats to
cage birds around the world. This highly infectious disease effects
most if not all parrot species. Polyoma seems to be most problematic
among neonates (young birds) between the ages 14-56 days. Young birds
often die, while adult birds can develop a certain level of immunity.
Polyoma is believed to have an incubation period of approximately
two weeks or less. More... |
Chlamydia psittaci
A also referred to as Psittacosis, Parrot Fever or
chlamydiosis. The word Psittacosis comes from the Greek word Psittakos,
meaning parrot. Chlamydia are gram negative, spherical, (0.4-0.6 micron
diameter), intracellular parasites that people sometimes referred
to as "energy parasites" because they use ATP (a crucial
energy containing metabolite) produced by the host cell, hence, the
term "energy parasites.
Incubation periods in caged birds vary
from days to weeks and longer. Most commonly this period is approximately
3 to 10 days. Latent infections are common and active disease may
occur several years after exposure. The incubation period of this
disease is however difficult to assess due to these chronically
infected birds that develop persistent, asymptomatic infections.
More...
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Other Infectious
Diseases:
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Animal Genetics, Inc. All rights reserved.
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