Two Novel Adenoviruses in Free-Living British lizards

In this study, we describe two novel adenoviruses isolated from (i) a common lizard (Zootoca vivipara) found dead and examined post-mortem and (ii) pooled samples from free-living sand lizards (Lacerta agilis agilis). Sequencing indicated the two were closely related atadenovirus strains which were distinct from previously recorded adenoviruses in lizards. Adenoviruses are not always associated with disease in squamates, but morbidity and mortality have been reported. These are the first known cases of adenovirus infection in free-living native British lizards, and further monitoring will be necessary to elucidate the implications of these possible pathogens for vulnerable populations of native reptiles.