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Clinical and Diagnostic Laboratory Immunology, 09 1996, 554-562, Vol 3, No. 5
R Hofmann-Lehmann, D Fehr, M Grob, M Elgizoli, C Packer, JS Martenson, SJ O'Brien and H Lutz
While viral infections and their impact are well studied in domestic cats,
only limited information is available on their occurrence in free- ranging
lions. The goals of the present study were (i) to investigate the
prevalence of antibodies to feline calicivirus (FCV), herpesvirus (FHV),
coronavirus (FCoV), parvovirus (FPV), and immunodeficiency virus (FIV) and
of feline leukemia virus (FeLV) antigen in 311 serum samples collected
between 1984 and 1991 from lions inhabiting Tanzania's national parks and
(ii) to evaluate the possible biological importance and the
interrelationship of these viral infections. Antibodies to FCV, never
reported previously in free-ranging lions, were detected in 70% of the
sera. In addition, a much higher prevalence of antibodies to FCoV (57%) was
found than was previously reported in Etosha National Park and Kruger
National Park. Titers ranged from 25 to 400. FeLV antigen was not
detectable in any of the serum samples. FCoV, FCV, FHV, and FIV were
endemic in the Serengeti, while a transient elevation of FPV titers pointed
to an outbreak of FPV infection between 1985 and 1987. Antibody titers to
FPV and FCV were highly prevalent in the Serengeti (FPV, 75%; FCV, 67%) but
not in Ngorongoro Crater (FPV, 27%; FCV, 2%). These differences could be
explained by the different habitats and biological histories of the two
populations and by the well-documented absence of immigration of lions from
the Serengeti plains into Ngorongoro Crater after 1965. These observations
indicate that, although the pathological potential of these viral
infections seemed not to be very high in free-ranging lions, relocation of
seropositive animals by humans to seronegative lion populations must be
considered very carefully.
Copyright © 1996 by the American Society for Microbiology. All rights reserved.
Prevalence of antibodies to feline parvovirus, calicivirus, herpesvirus, coronavirus, and immunodeficiency virus and of feline leukemia virus antigen and the interrelationship of these viral infections in free-ranging lions in east Africa
Department of Internal Veterinary Medicine, University of Zurich, Switzerland. rhofmann@vetklinik.unizh.ch
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