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Papillomavirus-DNA in FIV-positive cats
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Feline cutaneous squamous cell carcinomas (SCCs) often contain felis domesticus papillomavirus type 2 (FdPV-2) DNA. While this may suggest FdPV-2 causes feline SCC development, the proportion of cats that are asymptomatically infected by this PV is unknown. This recently published study examines the frequency of cutaneous asymptomatic FdPV-2 infections in cats and compares the rate of FdPV-2 infection in 22 FIV-positive cats with that in 22 FIV-negative cats - the results are fascinating!
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Infection by feline immunodeficiency virus (FIV) is associated with high rates of cutaneous SCC development, possibly due to increased PV infection.
This study examines the frequency of cutaneous asymptomatic FdPV-2 infections in cats and compares the rate of FdPV-2 infection in 22 FIV-positive cats with that in 22 FIV-negative cats.
FdPV-2 sequences were detected in 39% of skin swabs.
One or both swabs contained FdPV-2 DNA from 52% of the cats.
FIV status, age or sex of the cat did not significantly influence FdPV-2 infection. Cats that shared a household with a PV-infected cat could remain uninfected suggesting infection depends more on host factors than exposure to the PV.
These results indicate that asymptomatic FdPV-2 infections are common in cats, but do not provide evidence that FdPV-2 causes feline SCC development.
Source: John S. Munday and Adrian I. Witham (2010): Frequent detection of papillomavirus DNA in clinically normal skin of cats infected and noninfected with feline immunodeficiency virus. In: Veterinary Dermatology
Early View (Articles online in advance of print)
Published Online: 23 Dec 2009
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