Feline Leukaemia Virus Infection

Jarrett, O; Hosie, Margaret J.

doi:10.1002/9780470690727.ch23

Cited by 4 publications

(4 citation statements)

References 27 publications

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“…FeLV is readily transmitted in situations where cats live in close contact over longer periods of time (JARRETT, 1985). The low prevalence of FeLV antigen found in the present study may therefore be explained by the way in which cats are kept in Norway, single cat households being by far the most common.…”

Section: Discussioncontrasting

confidence: 57%

Prevalence of Feline Leukemia Virus and Antibodies to Feline Immunodeficiency Virus in Cats in Norway

Ueland

Lutz

1992

Journal of Veterinary Medicine, Series B

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Serum samples from 224 Norwegian cats were analyzed for the presence of feline leukemia virus (FeLV) p27 common core antigen, and for antibodies to feline immunodeficiency virus (FIV). Ninety specimens originated from the serum bank at the central referral clinic at the Norwegian College of Veterinary Medicine, which had been collected during the years 1983-1989; 67 sera were submitted from veterinarian practitioners; while 67 sera originated from cats presented for euthanasia. The cats were classified into one "healthy" and one "sick" group.Only 2.2 YO of sick cats and 1.2 % of healthy cats showed FeLV antigenemia, a finding which is lower than which has been reported from many other countries.The prevalence of FIV antibodies was 10.

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Section: Discussioncontrasting

confidence: 57%

Prevalence of Feline Leukemia Virus and Antibodies to Feline Immunodeficiency Virus in Cats in Norway

Ueland

Lutz

1992

Journal of Veterinary Medicine, Series B

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“…Cats from BAC have been free from the feline leukaemia virus (FeLV) since the beginning of the monitoring (1991), while the disease is present in the surrounding villages (Xémar, unpublished). FeLV is a common cat disease transmitted easily by direct contact between cats (Jarrett 1985). These results suggest strongly a low level of connection between cat populations in this environment.…”

Section: Methodsmentioning

confidence: 99%

Effective size of two feral domestic cat populations (Felis catusL.): effect of the mating system

et al. 2004

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A variety of behavioural traits have substantial effects on the gene dynamics and genetic structure of local populations. The mating system is a plastic trait that varies with environmental conditions in the domestic cat (Felis catus) allowing an intraspecific comparison of the impact of this feature on genetic characteristics of the population. To assess the potential effect of the heterogenity of males' contribution to the next generation on variance effective size, we applied the ecological approach of Nunney& Elam (1994) based upon a demographic and behavioural study, and the genetic 'temporal methods' of Waples (1989) and Berthier et al. (2002) using microsatellite markers. The two cat populations studied were nearly closed, similar in size and survival parameters, but differed in their mating system. Immigration appeared extremely restricted in both cases due to environmental and social constraints. As expected, the ratio of effective size to census number (Ne/N) was higher in the promiscuous cat population (harmonic mean = 42%) than in the polygynous one (33%), when Ne was calculated from the ecological method. Only the genetic results based on Waples' estimator were consistent with the ecological results, but failed to evidence an effect of the mating system. Results based on the estimation of Berthier et al. (2002) were extremely variable, with Ne sometimes exceeding census size. Such low reliability in the genetic results should retain attention for conservation purposes.

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“…Recovery from infection is not possible but not all infected cats develop the disease (Zenger 1992). FeLV is associated with malignant tumors and immunosuppression (Jarrett 1985). Most infected cats recover from infection, develop an immunity, and do not become excreting carriers, whereas others become persistently viraemic.…”

Section: Introductionmentioning

confidence: 99%

“…during aggressive contacts between cats. FeLV transmission occurs during any direct contact, occasionally through bites, but especially by licking, grooming, sharing feeding places (Jarrett 1985), i.e. during social behaviours, or from mother to foetus (Hoover et al 1983).…”

Section: Introductionmentioning

confidence: 99%

Retroviruses and sexual size dimorphism in domestic cats (Felis catus L.)

Pontier

Fromont

Courchamp

et al. 1998

Proc. R. Soc. Lond. B

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Hochberg and co-workers have predicted that an increase in host adult mortality due to parasites is balanced by an earlier age at first reproduction. In polygynous species we hypothesize that such a pattern would lead to diverging selection pressure on body size between sexes and increased sexual size dimorphism. In polygynous mammals, male body size is considered to be an important factor for reproductive success. Thus, under the pressure of a virulent infection, males should be selected for rapid growth and/or higher body size to be able to compete successfully as soon as possible with opponents. In contrast, under the same selection pressure, females should be selected for lighter adult body size or rapid growth to reach sexual maturity earlier. We investigated this hypothesis in the domestic cat Felis catus. Orange cats have greater body size dimorphism than non-orange cats. Orange females are lighter than non-orange females, and orange males are heavier than non-orange males. Here, we report the extent to which orange and non-orange individuals differ in infection prevelance for two retroviruses, feline immunodeficiency virus (FIV) and feline leukaemia virus (FeLV). FIV is thought to be transmitted almost exclusively through aggressive contacts between individuals, whereas FeLV transmission occurs mainly through social contacts. The pattern of infection of both diseases is consistent with the higher aggressiveness of orange cats. In both sexes, orange cats are significantly more infected by FIV, and tend to be less infected by FeLV than other cats. The pattern of infection is also consistent with an earlier age at first reproduction in orange than in non-orange cats, at least for females. These results suggest that microparasitism may have played an important role in the evolution of sexual size dimorphism of domestic cats.

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Feline Leukaemia Virus Infection

Cited by 4 publications

References 27 publications

Prevalence of Feline Leukemia Virus and Antibodies to Feline Immunodeficiency Virus in Cats in Norway

Prevalence of Feline Leukemia Virus and Antibodies to Feline Immunodeficiency Virus in Cats in Norway

Effective size of two feral domestic cat populations (Felis catusL.): effect of the mating system

Retroviruses and sexual size dimorphism in domestic cats (Felis catus L.)

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