Canine Parvovirus
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This is the actual canine parvovirus
CANINE PARVOVIRUS: WHAT IS IT?
Parvoviruses are a large group; almost every mammal species (including humans) seems to have its own parvovirus. Fortunately, each virus is pretty specific about what animals it can infect (i.e. the pig parvovirus will not infect people, the canine parvovirus will not infect cats etc.) The canine parvovirus will affect most members of the dog family (wolves, coyotes, foxes etc.)
Parvoviruses are smaller than most viruses and consist of a protein coat (a "capsid") and a single strand of DNA inside. It is hard to believe that such a simply constructed organism could be so deadly; however, this virus has proved especially effective at infecting rapidly dividing host cells such as intestinal cells, bone marrow cells, cells of the lymph system, and fetal cells. Parvoviruses are not enveloped in fat the way many other viruses are. This makes parvoviruses especially hardly in the environment and difficult to disinfect away.
While the parvoviruses of other species have been well known for decades, the canine parvovirus is a relative newcomer. The original canine parvovirus, discovered in 1967 and called "CPV-1," did not represent much of a medical threat except to newborn puppies but by 1978, a new variant, "CPV-2" appeared in the U.S. This newer version seems to represent a mutation from the feline parvovirus (which is more commonly known as the "feline distemper virus"). Because this virus was (and is) shed in gigantic numbers by infected animals and because this virus is especially hardy in the environment, worldwide distribution of the...
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