− | Togaviridae survive by asymptomatically infecting sylvatic hosts such as birds, small mammals, reptiles and amphibians.<ref name="multiple">Bertone, J.J (2010) Viral Encephalitis in Reed, S.M, Bayly, W.M. and Sellon, D.C (2010) '''Equine Internal Medicine''' (Third Edition), ''Saunders'', Chapter 12</ref>. Overwintering occurs in these wild populations. | + | Togaviridae survive by asymptomatically infecting sylvatic hosts such as birds, small mammals, reptiles and amphibians.<ref name="multiple">Bertone, J.J (2010) Viral Encephalitis in Reed, S.M, Bayly, W.M. and Sellon, D.C (2010) '''Equine Internal Medicine''' (Third Edition), ''Saunders'', Chapter 12</ref> Overwintering occurs in these wild populations. |