Lack of detection of West Nile virus in an islander population of chelonians during a West Nile virus outbreak.

Di Girolamo, Nicola; Selleri, Paolo; Di Gennaro, Annapia; Maldera, Marco; Nardini, Giordano; Morandi, Benedetto; Muzzeddu, Marco; Origgi, Francesco; Savini, Giovanni (2016). Lack of detection of West Nile virus in an islander population of chelonians during a West Nile virus outbreak. Veterinaria italiana, 52(2), pp. 169-173. Teramo, Istituto sperimentale zooprofilattico 10.12834/VetIt.356.1600.2

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In 2011, several outbreaks of West Nile disease occurred in Sardinia (Italy). The region hosts several chelonian species. Because of the increasing concern on the potential role that ectotherms may play in the ecology of West Nile virus (WNV), in October 2011 blood samples were collected from 41 endemic Sardinian chelonians and tested for the presence of active WNV infection or neutralizing antibodies by real time polymerase chain reaction (RT-PCR) and serumneutralisation, respectively. Neither WNV neutralising antibodies (0%; 95% CI: 0‑8.4%) nor WNV RNA (0%; 95% CI: 0‑6.8%) were found in the tested samples. According to the results of this screening survey, it is unlikely that chelonians are involved in the epidemiology of the 2011 WNV outbreaks in Sardinia.

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