Antibody reaction of leptospirosis in asymptomatic feral boars, Thailand.

Phirom Prompiram,Nongluck Sangkaew,Kanaporn Poltep

doi:10.14202/vetworld.2019.1884-1887

Phirom Prompiram, Nongluck Sangkaew + Show 1 more

Open Access

https://doi.org/10.14202/vetworld.2019.1884-1887

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Abstract

Aims:This study aimed to determine the proportion of exposure to leptospirosis and evaluate the degree of serovar antibody reaction in feral boars.Materials and Methods:A total of 58 sera obtained from feral boars in Khao Prathab Chang Wildlife Breeding Center, Ratchaburi, Thailand, were screened for leptospirosis exposure by microscopic agglutination test, conducted with a reference panel of 23 pathogenic serovars and a non-pathogenic serovar.Results:Overall exposure rate of 62.07% was found in the studied population. An antibody reaction presented in 18 of 24 leptospiral serovars. Among the seropositive, Ballum serovar showed predominant exposure in the feral boar population.Conclusion:The results show a relatively high exposure to leptospirosis and the predominant serovar was Ballum followed by Canicola, the first finding in feral boars in Thailand. It has been revealed that feral boars act as a natural reservoir host of leptospirosis. There should be more concern about public health problems in leptospirosis arising where feral boars appear.

Highlights

Leptospirosis, a bacterial zoonotic disease, has shown a spatiotemporal incidence in the peoples of tropical regions with high temperature and humidity, including Thailand
The incidence of leptospirosis in Thailand is commonly involved with wildlife species, which are an important source of pathogenic serovars [2,3]
This study is a preliminary documented the leptospirosis in feral boar of Thailand

Summary

Introduction

Leptospirosis, a bacterial zoonotic disease, has shown a spatiotemporal incidence in the peoples of tropical regions with high temperature and humidity, including Thailand. The incidence of leptospirosis in Thailand is commonly involved with wildlife species, which are an important source of pathogenic serovars [2,3]. To better understand the reservoir hosts or facilitating hosts of leptospirosis exposure in other wildlife, in particular, the feral boar should be of concern as a natural reservoir host, because of its feeding behavior on the ground that a leptospirosis endemic source, and they are considered highly mobile animals [5]. In the previous reports from both America and continental Europe, feral boars have been seen to harbor various predominant serovars of leptospirosis [6,7,8,9].

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