AUBURN UNIVERSITY 23/01/20 Veterinarian offers information and tips on Feline Leukemia virus and Feline Immunodeficiency virus. The American Association of Feline Practitioners recently updated its guidelines on Feline Leukemia virus and Feline Immunodeficiency virus, both serious infectious diseases in cats.
Dr. Diane Delmain of Auburn University’s College of Veterinary Medicine offers information on prevention, symptoms and vaccinations. What is Feline Leukemia virus and what are the symptoms? The name, Feline Leukemia virus, or FeLV, confuses many people. In humans, leukemia refers only to a type of cancer affecting the white blood cells. Cats are most susceptible when they are young. ACTA VETERINARIA HUNGARICA 16/01/21 Prevalence of feline leukaemia virus and feline immunodeficiency virus in domestic cats in Ireland. Preventive Veterinary Medicine Volume 190, May 2021 Prevalence of hemotropic mycoplasmas and coinfection with feline leukemia virus and feline immunodeficiency virus in cats in the Moscow region, Russia.
Hemotropic mycoplasmas (haemoplasmas) are small epicellular bacteria that adhere to the erythrocytes of infected animals.
They are the causative agent of infectious anemia in several mammalian species, including dogs and cats (Sykes, 2010; Tasker et al., 2018). The three main haemoplasma species known to infect cats are Mycoplasma haemofelis (Mhf), Candidatus Mycoplasma haemominutum (CMhm), and Candidatus Mycoplasma turicensis (CMt) (Barker, 2019; Tasker et al., 2018). These three species differ in size but are otherwise similar in terms of their morphological features.
They also differ in terms of the severity of the disease that they cause. Mhf is the most pathogenic feline haemoplasma species. In the laboratory diagnosis of hemoplasmic infection, two approaches are used: cytological examination of blood smears and the study of blood samples using polymerase chain reaction (PCR). VETERINARY WORLD 13/02/21 Molecular detection of feline leukemia virus in clinically ill cats in Klang Valley, Malaysia. Research (Published online: 13-02-2021) 11.
Molecular detection of feline leukemia virus in clinically ill cats in Klang Valley, Malaysia Kunambiga Mummoorthy, Abd Rahaman Yasmin, Siti Suri Arshad, Abdul Rahman Omar, Saulol Hamid Nur-Fazila, Prem Anand, Liew Wuan Hoong and Kiven Kumar. Comparative Immunology, Microbiology and Infectious Diseases Volume 63, April 2019, Prevalence of and factors associated with feline leukemia virus (FeLV) and feline immunodeficiency virus (FIV) in cats of the state of Santa Catarina, Brazil. Ciênc. anim. bras. vol.20 Goiânia 2019 Epub Sep 30, 2019 RISK FACTORS AND CLINICAL SYMPTOMATOLOGY RELATED WITH FELV: CASE-CONTROL STUDY IN A VETERINARY TEACHING HOSPITAL. VIRUSES 20/04/20 Prevalence and Genomic Diversity of Feline Leukemia Virus in Privately Owned and Shelter Cats in Aburrá Valley, Colombia. The feline leukemia virus (FeLV) belongs to the family Retroviridae; it is the first feline retrovirus discovered and one of the agents that has a great impact on cats’ health and the ecology of the feline population worldwide.
Résumé traduit : La présente étude a examiné la prévalence de l'infection associée à la caractérisation moléculaire du FeLV présent chez les chats dans la vallée d'Aburrá, en Colombie. L'échantillonnage des chats appartenant à des propriétaires privés et des refuges a été effectué sur des félins femelles (n = 54) et mâles (n = 46); la plupart d'entre eux étaient apparemment en bonne santé selon le rapport du propriétaire, avec des antécédents cliniques non spécifiques. En conclusion, la fréquence du virus de la leucémie, révélée par les tests moléculaires et sérologiques, est l'une des fréquences les plus élevées signalées à ce jour, et une variation moléculaire élevée est montrée dans la population colombienne. – guatemalt
It is associated with the occurrence of several syndromes of fatal diseases, including the development of lymphomas.
Studies on FeLV have been reported in Colombia, and most of them have been approached from a clinical point of view. However, only a few studies have focused on the prevalence of the infection, while none have clarified which variant or FeLV viral subgroup is presently circulating in our country. Therefore, the present study investigated the prevalence of the infection associated with the molecular characterization of FeLV present in cats in Aburrá Valley, Colombia. ►▼ Show Figures Figure 1. CDC EID - JANV 2019 - Multiple Introductions of Domestic Feline Leukemia Virus in Endangered Florida Panthers. Elliott S.
Chiu, Simona Kraberger, Mark Cunningham, Lara Cusack, Melody Roelke, and Sue VandeWoude Author affiliations: Colorado State University, Fort Collins, Colorado, USA (E.S. Chiu, S. Kraberger, S. VIROLOGY JOURNAL 17/11/17 Putative progressive and abortive feline leukemia virus infection outcomes in captive jaguarundis (Puma yagouaroundi) We detected evidence of FeLV exposure in four (#1, #2, #4 and #22) out of 23 jaguarundis in the FPZSP (17%; 95% CI 5–39%).
The remaining 19 jaguarundis were negative for FeLV in all serological and molecular tests performed. The population of jaguarundis presented clinical disorders that were common at FPZSP, as in any other captive setting in Brazil [2, 12], and could be associated with a multitude of causes. Although the FeLV-positive jaguarundis also presented some conditions that could be related to FeLV , our data were insufficient to prove a causal association. Two captive-born male jaguarundis, the geriatric #1 and the mature adult #4, presented serological and molecular FeLV test results similar to the progressive FeLV infection outcome in domestic cats . Jaguarundis #1 and #4 were both antigenemic. Viruses 2018, 10(1), 29; A Retrospective Examination of Feline Leukemia Subgroup Characterization: Viral Interference Assays to Deep Sequencing.
Pesq. Vet. Bras. vol.37 no.12 Rio de Janeiro Dec. 2017 Hematological findings and factors associated with feline leukemia virus (FeLV) and feline immunodeficiency virus (FIV) positivity in cats from southern Brazil. References.
J Virol. 2017 Feb 14;91(5). Barriers to Infection of Human Cells by Feline Leukemia Virus: Insights into Resistance to Zoonosis. J Virol. 2018 Aug 29;92(18) Feline Leukemia Virus (FeLV) Disease Outcomes in a Domestic Cat Breeding Colony: Relationship to Endogenous FeLV and Other Chronic Viral Infections. Journal of the American Veterinary Medical Association 15/07/17 Seroprevalences of feline leukemia virus and feline immunodeficiency virus infection in cats in the United States and Canada and risk factors for seropositivity. IJVST - 2017 - A survey on feline leukemia virus infection in cats in Ahvaz district, Iran: Seroprevalence and risk factors. Accessibility links Skip to main contentAccessibility help Accessibility feedback MoreEven more from Google Sign in Search modes All News Images.
TURKISH JOURNAL OF ZOOLOGY 21/03/18 The prevalence and genetic diversity of feline immunodeficiency virus and feline leukemia virus among stray cats in Harbin, China. Veterinary Immunology and Immunopathology Volume 134, Issues 1–2, 15 March 2010, Feline leukemia virus infection: a threat for the survival of the critically endangered Iberian lynx (Lynx pardinus) Feline leukemia virus infection: a threat for the survival of the critically endangered Iberian lynx (Lynx pardinus) ML Meli, V Cattori, F Martínez, G López… - Veterinary immunology …, 2010 - Elsevier Abstract The Iberian lynx (Lynx pardinus) is considered the most endangered felid species in the world.
To date, less than 200 animals remain in the wild. Low numbers and genetic uniformity may contribute to render this species particularly susceptible to infectious diseases. Different pathogens have been identified in Iberian lynxes; including several feline bacterial and viral agents. BMC VETERINARY RESEARCH 05/01/13 Comparison of the geographical distribution of feline immunodeficiency virus and feline leukemia virus infections in the United States of America (2000–2011) This exploratory analysis identified that areas of relative excess of FIV and FeLV exist in the US.
Both the choropleth maps of PMR and the spatial scan test for evidence of high risk clusters identified similar areas of relative excess of one infection over the other. Since it is assumed that both infections share similar risk factors, it would be expected that the occurrence of both infections relative to each other would be more or less uniform throughout the US. However, our spatial analyses show that higher numbers of FIV infections were reported in the southern and eastern US compared to FeLV infections. In contrast, reported FeLV infections were observed to be higher in the western and north-central US compared to FIV infections.
These results suggest that the relative excesses of one infection over the other may be the result of different factors affecting these geographical areas. It is important that limitations be considered when interpreting results from this study. BMC VETERINARY RESEARCH 10/02/15 Comparison of risk factors for seropositivity to feline immunodeficiency virus and feline leukemia virus among cats: a case-case study. This case-case study is based on cross-sectional or prevalence data and thus generally not suited to identify risk factors. However, only known risk factors  were evaluated in this study with respect to their importance as risk factors for infection with FIV compared to FeLV. The results from this study imply that risk factors commonly associated with FIV and FeLV differ in their relative effects for these two diseases. For example adult, male, or outdoor cats are more likely to be seropositive for FIV than FeLV when compared to juvenile, female or cats kept exclusively indoors.
In contrast, neuter status was not significantly different for either infection. Further, whether cats were tested at clinics or shelters was not different for these infections. J Feline Med Surg. 2014 Jun;16(6):460-4. Seroprevalence of feline leukemia virus, feline immunodeficiency virus and heartworm infection among owned cats in tropical Mexico.
J Clin Microbiol. 2014 Jun; 52(6): 2046–2052. Detection of Antibodies to the Feline Leukemia Virus (FeLV) Transmembrane Protein p15E: an Alternative Approach for Serological FeLV Detection Based on Antibodies to p15E. Clin Vaccine Immunol. 2015 Jul;22(7):798-805. Comparative Efficacy of Feline Leukemia Virus (FeLV) Inactivated Whole-Virus Vaccine and Canarypox Virus-Vectored Vaccine during Virulent FeLV Challenge and Immunosuppression. Revista Argentina de Microbiología Volume 48, Issue 4, October–December 2016, Viral diagnostic criteria for Feline immunodeficiency virus and Feline leukemia virus infections in domestic cats from Buenos Aires, Argentina. Can J Vet Res. 2014 Apr; 78(2): 140–144. Seroprevalence of feline immunodeficiency virus (FIV) and feline leukemia virus (FeLV) in shelter cats on the island of Newfoundland, Canada.
NEWS MEDICAL 10/10/12 Feline leukemia virus becoming uncommon with lymphoma. By Sarah Guy, medwireNews ReporterOctober 10, 2012 at 9:15 AM Rates of feline leukemia virus (FeLV) in domestic cats with lymphoma have decreased in recent years, suggesting alternative etiologies for this cancer subtype, show German study results. The findings also reveal that if lymphoma occurs in cats with FeLV, they are likely to be younger animals, and generally have a worse prognosis, notes the research team.
Tina Meichner and colleagues from the Ludwig Maximilian University in Munich compared the incidence of progressive FeLV infection and age distribution in 390 client-owned cats treated at their institution between 1980 and 2009. Data were divided into two time periods - 1980 and 1994 - during which time 178 cats were diagnosed with lymphoma; and 1995 to 2009, during which time 212 cats were diagnosed with the disease.
B contrast, FeLV-positive cats were significantly younger than their FeLV-negative counterparts overall, at 3.7 years versus 11.3 years. J Virol. 2011 December; 85(23): 12529–12536. Feline Leukemia Virus Infection Requires a Post-Receptor Binding Envelope-Dependent. Can Vet J. 2011 November; 52(11): 1161. Feline leukemia virus and feline immunodeficiency virus article — A reply. Infection, Genetics and Evolution Volume 11, Issue 8, December 2011 Quantification and molecular characterization of the feline. Abstract Virus receptors and their expression patterns on the cell surface determine the cell tropism of the virus, host susceptibility and the pathogenesis of the infection.
Feline thiamine transport protein 1 (fTHTR1) has been identified as the receptor for feline leukemia virus (FeLV) A. The goal of the present study was to develop a quantitative, TaqMan real-time PCR assay to investigate fTHTR1 mRNA expression in tissues of uninfected and FeLV-infected cats, cats of different ages, in tumor tissues and leukocyte subsets. Moreover, the receptor was molecularly characterized in different feline species. fTHTR1 mRNA expression was detected in all 30 feline tissues investigated, oral mucosa scrapings and blood. Importantly, identification of significant differences in fTHTR1 expression relied on normalization with an appropriate reference gene.
Highlights Keywords Thiamine transporter; Receptor; FeLV; Retrovirus; Susceptibility; Reference genes Copyright © 2011 Elsevier B.V. Cienc. Rural [online]. 2011, Feline leukemia virus: infection outcomes, diagnostic techniques and vaccine efficacy analysis empl. Services on Demand Article Indicators Related links Similars in SciELO Share Permalink Ciência Rural Print version ISSN 0103-8478. American Journal of Animal and Veterinary Sciences 6 (3): 125-129, 2011 Occurrence of Feline Immunodeficiency Virus and Feline L.