Amblyomma variegatum in cattle in Marie Galante, French Antilles: prevalence, control measures, and infection by Ehrlichia ruminantium

Veterinary Parasitology
Sophie MoliaThierry Lefrançois

Abstract

We report Marie Galante as one of the Caribbean islands most heavily infested by the tropical bont tick (TBT) Amblyomma variegatum which is associated with two major diseases of ruminants: heartwater and dermatophilosis. In 2005, a survey was undertaken to assess the prevalence of TBT infestation in cattle, the prevalence of Ehrlichia ruminantium infection in TBTs, and the tick control measures implemented by livestock owners. A random sample of 195 cattle herds out of 1885 recorded on the island was investigated by thoroughly counting adult ticks on each animal and filling a questionnaire. A randomly collected sample of 136 TBTs was tested for infection by E. ruminantium by pCS20 nested PCR. Cattle herd prevalence (hp) was 73.8% for infestation by at least one TBT, 17.9% for infestation by at least one engorged female TBT, and 8.2% for clinical dermatophilosis. Cattle individual prevalence was 42.3% for infestation by at least one TBT, 6.6% for infestation by at least one engorged female TBT, and 2.2% for clinical dermatophilosis. The minimum, maximum and average numbers of TBTs per infested animal were, respectively 1, 108 and 11.5. Prevalence of TBT infection by E. ruminantium was 19.1%. No significant difference in herd pre...Continue Reading

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Citations

Jan 16, 2010·Animal Health Research Reviews·Daniel Ndzingu Awa, Mbunkah Daniel Achukwi
Apr 13, 2011·Journal of Medical Entomology·Patrick J KellyS Mahan
Jun 18, 2010·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Hassane AdakalRoger Frutos
Aug 29, 2009·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Hassane AdakalRoger Frutos
Oct 20, 2009·Veterinary Parasitology·Basil A Allsopp
Oct 18, 2016·Frontiers in Cellular and Infection Microbiology·Nídia CangiNathalie Vachiéry
Nov 15, 2017·Parasites & Vectors·Nídia CangiNathalie Vachiéry
Sep 28, 2012·Experimental & Applied Acarology·Elsa LégerKaren D McCoy
Jun 9, 2020·Journal of Parasitic Diseases : Official Organ of the Indian Society for Parasitology·Olaoluwa Isaac AnifowoseEbenezer Babatunde Otesile

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