Q fever:

A disease that is characterized by high fever, chills, muscular pains, headache, and sometimes pneumonia, that is caused by a rickettsial bacterium of the genus Coxiella (C. burnetii) of which domestic animals serve as reservoirs, and that is transmitted to humans especially by inhalation of infective airborne bacteria (as in contaminated dust).


Rinderpest:

An acute, often fatal, contagious viral disease, chiefly of cattle, characterized by ulceration of the alimentary tract and resulting in diarrhea.


SARS (Severe acute respiratory syndrome):

A viral respiratory illness caused by a coronavirus, called SARS-associated coronavirus (SARS-CoV).

Serology:

The science that deals with the properties and reactions of serums, especially blood serum, and typically relates to the testing of sera for antibodies against viruses or bacteria.

Surveillance:

An active, systematic, ongoing, and formal process aimed at early detection of a disease, an agent, or elevated risk of disease in a population.


Toxin:

A poisonous substance produced during the metabolism and growth of certain microorganisms and some higher plant and animal species.

Transmissible spongiform encephalopathy (TSE):

Examples include, but are not limited to, the following diseases: feline spongiform encephalopathy, bovine spongiform encephalopathy, chronic wasting disease, and scrapie. See individual species.


Vaccine:

Substance administered to animal to stimulate its defense mechanism.


West Nile virus (WNV):

The mosquito-borne virus that causes West Nile fever, one of the flaviviruses, a family of viruses also responsible for dengue, yellow fever, and tick-borne encephalitis virus; like the other flaviviruses, WNV is a positive-strand RNA virus containing three structural proteins and a host-derived lipid bilayer.


Zoonoses:

Diseases caused by infectious agents that can be transmitted between (or are shared by) animals and humans.



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