- Etiology : cowpox virus
- Occurence
- US, central Europe (in earlier times) / today, rare
- source : cats(4), rodents(3), cow(1) of cowpox virus infection
- not always be traced to diseased cattle (์๋ฅผ ํตํด์๋ง ๊ฐ์ผX) ์กฑ๋ณด
- natural reservoir : small rodents
- Transmission
- milkers who contact with pox on teats
- develop on hands, arms, face