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Companion animals such as cats, dogs, and horses, if not vaccinated, can catch serious viral infections. Canine parvovirus 2 is caused by a small DNA virus, and infections are often fatal in pups. [12] The emergence of the parvovirus in the 1970s was the most significant in the history of infectious diseases.
The virus has also been found in over a dozen wild animal species. Most animal species that can get the virus have not been proven to be able to spread it back to humans. The Centers for Disease Control and Prevention has stated that there is low risk that the virus would spread from animals to people but further studies are yet to be conducted ...
Often simply called an antiviral. A class of antimicrobial medication used specifically for treating diseases caused by viral infections rather than ones caused by bacteria or other infectious agents. Unlike most antibiotics, antivirals typically do not destroy their target viruses but instead inhibit their development. They are distinct from virucides. assembly The construction of the virus ...
The virulence of the virus may be changed, [5] or a virus could evolve to become adapted to a different host environment than that in which it is typically found. [5] Relatively few passages are necessary to produce a noticeable change in a virus; for instance, a virus can typically adapt to a new host within ten or so passages.
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. [1] Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. [2] [3] Viruses are found in almost every ecosystem on Earth and are the most numerous type of biological entity.
The skin of animals, particularly its surface, which is made from dead cells, prevents many types of viruses from infecting the host. The acidity of the contents of the stomach destroys many viruses that have been swallowed. When a virus overcomes these barriers and enters the host, other innate defences prevent the spread of infection in the body.
The effects of parasitic worms, or helminths, on the immune system is a recently emerging topic of study among immunologists and other biologists. Experiments have involved a wide range of parasites, diseases, and hosts. The effects on humans have been of special interest.
This is a list of television shows formerly broadcast on the Kids' WB programming block in the United States. The block launched on September 9, 1995, on The WB and continued after the 2006 United States broadcast TV realignment on The CW until it aired for the final time on May 17, 2008. Kids' WB would be succeeded by The CW4Kids.
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