Mongoose (<i>Herpestes auropunctatus)</i> May Not Be Reservoir Hosts for <i>Mycobacterium bovis</i> in Fiji Despite High Population Density and Direct Contact with Cattle
The presence of a wildlife reservoir for <i>Mycobacterium bovis</i> complicates the eradication of bovine tuberculosis (BTB) from domestic cattle populations. For the BTB eradication program in Fiji, there is concern about the small Indian mongoose (<i>Herpestes auropunctatus</i...
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doaj-4d717be34dac4b4e99521683cbe4a1782021-04-02T05:49:10ZengMDPI AGVeterinary Sciences2306-73812019-10-01648510.3390/vetsci6040085vetsci6040085Mongoose (<i>Herpestes auropunctatus)</i> May Not Be Reservoir Hosts for <i>Mycobacterium bovis</i> in Fiji Despite High Population Density and Direct Contact with CattlePhilip J. Hayton0Richard J. Whittington1Colin Wakelin2Paul Colville3Aoife Reid4Leo Borja5Jenny-Ann Toribio6School of Veterinary Science and Marie Bashir Institute for Infectious Diseases and Biosecurity, Farm Animal Health, University of Sydney, Camden, NSW 2570, AustraliaSchool of Veterinary Science and Marie Bashir Institute for Infectious Diseases and Biosecurity, Farm Animal Health, University of Sydney, Camden, NSW 2570, AustraliaKoronivia Research Station, P.O. Box 77 Koronivia, Western Division, FijiKoronivia Research Station, P.O. Box 77 Koronivia, Western Division, FijiKoronivia Research Station, P.O. Box 77 Koronivia, Western Division, FijiKoronivia Research Station, P.O. Box 77 Koronivia, Western Division, FijiSchool of Veterinary Science and Marie Bashir Institute for Infectious Diseases and Biosecurity, Farm Animal Health, University of Sydney, Camden, NSW 2570, AustraliaThe presence of a wildlife reservoir for <i>Mycobacterium bovis</i> complicates the eradication of bovine tuberculosis (BTB) from domestic cattle populations. For the BTB eradication program in Fiji, there is concern about the small Indian mongoose (<i>Herpestes auropunctatus</i>), which is overabundant and in direct contact with cattle. Consequently, a survey of mongooses trapped on three BTB affected dairy farms led to necropsy of 85 mongooses during January−February 2017. Thirty (35%) mongooses had gross pathological changes including possible granulomas detected at necropsy, and tissues from these animals were taken for histopathological examination. Granulomatous lesions were present in 53% of animals examined histopathologically but acid-fast bacilli were not observed and the majority of lesions in lung and kidney were associated with the nematodes <i>Pulmostrongylus herpestis</i> and <i>Capillaria</i> sp., respectively. Nevertheless, assuming test sensitivity of 35% for the current study, from this sample of 85 mongooses it can be concluded with 95% confidence that if present in the mongoose population susceptible to trapping, <i>M. bovis</i> prevalence was ≤10%. The prevalence of intercurrent lesions raised concerns about gross pathology as a screening test for <i>M. bovis</i> infection in mongooses in Fiji, and therefore pathogen detection methods such as bacterial culture and direct tissue PCR are recommended for future surveys. These are needed to completely rule out the mongoose as a reservoir host for <i>M. bovis</i> in Fiji.https://www.mdpi.com/2306-7381/6/4/85fijimongoosereservoir hostmycobacterium bovissurveillance |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Philip J. Hayton Richard J. Whittington Colin Wakelin Paul Colville Aoife Reid Leo Borja Jenny-Ann Toribio |
spellingShingle |
Philip J. Hayton Richard J. Whittington Colin Wakelin Paul Colville Aoife Reid Leo Borja Jenny-Ann Toribio Mongoose (<i>Herpestes auropunctatus)</i> May Not Be Reservoir Hosts for <i>Mycobacterium bovis</i> in Fiji Despite High Population Density and Direct Contact with Cattle Veterinary Sciences fiji mongoose reservoir host mycobacterium bovis surveillance |
author_facet |
Philip J. Hayton Richard J. Whittington Colin Wakelin Paul Colville Aoife Reid Leo Borja Jenny-Ann Toribio |
author_sort |
Philip J. Hayton |
title |
Mongoose (<i>Herpestes auropunctatus)</i> May Not Be Reservoir Hosts for <i>Mycobacterium bovis</i> in Fiji Despite High Population Density and Direct Contact with Cattle |
title_short |
Mongoose (<i>Herpestes auropunctatus)</i> May Not Be Reservoir Hosts for <i>Mycobacterium bovis</i> in Fiji Despite High Population Density and Direct Contact with Cattle |
title_full |
Mongoose (<i>Herpestes auropunctatus)</i> May Not Be Reservoir Hosts for <i>Mycobacterium bovis</i> in Fiji Despite High Population Density and Direct Contact with Cattle |
title_fullStr |
Mongoose (<i>Herpestes auropunctatus)</i> May Not Be Reservoir Hosts for <i>Mycobacterium bovis</i> in Fiji Despite High Population Density and Direct Contact with Cattle |
title_full_unstemmed |
Mongoose (<i>Herpestes auropunctatus)</i> May Not Be Reservoir Hosts for <i>Mycobacterium bovis</i> in Fiji Despite High Population Density and Direct Contact with Cattle |
title_sort |
mongoose (<i>herpestes auropunctatus)</i> may not be reservoir hosts for <i>mycobacterium bovis</i> in fiji despite high population density and direct contact with cattle |
publisher |
MDPI AG |
series |
Veterinary Sciences |
issn |
2306-7381 |
publishDate |
2019-10-01 |
description |
The presence of a wildlife reservoir for <i>Mycobacterium bovis</i> complicates the eradication of bovine tuberculosis (BTB) from domestic cattle populations. For the BTB eradication program in Fiji, there is concern about the small Indian mongoose (<i>Herpestes auropunctatus</i>), which is overabundant and in direct contact with cattle. Consequently, a survey of mongooses trapped on three BTB affected dairy farms led to necropsy of 85 mongooses during January−February 2017. Thirty (35%) mongooses had gross pathological changes including possible granulomas detected at necropsy, and tissues from these animals were taken for histopathological examination. Granulomatous lesions were present in 53% of animals examined histopathologically but acid-fast bacilli were not observed and the majority of lesions in lung and kidney were associated with the nematodes <i>Pulmostrongylus herpestis</i> and <i>Capillaria</i> sp., respectively. Nevertheless, assuming test sensitivity of 35% for the current study, from this sample of 85 mongooses it can be concluded with 95% confidence that if present in the mongoose population susceptible to trapping, <i>M. bovis</i> prevalence was ≤10%. The prevalence of intercurrent lesions raised concerns about gross pathology as a screening test for <i>M. bovis</i> infection in mongooses in Fiji, and therefore pathogen detection methods such as bacterial culture and direct tissue PCR are recommended for future surveys. These are needed to completely rule out the mongoose as a reservoir host for <i>M. bovis</i> in Fiji. |
topic |
fiji mongoose reservoir host mycobacterium bovis surveillance |
url |
https://www.mdpi.com/2306-7381/6/4/85 |
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