The Cowpox (Catpox) virus is found in Europe and mainly in the UK. Human cases are very rare and most often contracted from domestic cats. The virus is not commonly found in cows; the reservoir hosts for the virus are woodland rodents particularly voles. It is from these rodents that domestic cats get the virus. Symptoms in cats include lesions on the face, neck, forelimbs, and paws, and less commonly upper respiratory tract infection. Symptoms of infection with cowpox virus in humans are localized, pustular lesions generally found on the hands and limited to the site of introduction. The incubation period (the time between an infection and the first signs of the disease) is 9–10 days. The virus can be found mostly in late summer and autumn.