ANATOMY

Detailed explanation-1: -Cowpox is similar to, but much milder than, the highly contagious and often deadly smallpox disease. Its close resemblance to the mild form of smallpox and the observation that dairy farmers were immune to smallpox inspired the modern smallpox vaccine, created and administered by English physician Edward Jenner.

Detailed explanation-2: -Cowpox is similar to but much milder than the highly contagious and sometimes deadly smallpox disease.

Detailed explanation-3: -But then Jenner showed that people could become immune to smallpox by being vaccinated with cowpox. It was safer because cowpox rarely kills.

Detailed explanation-4: -The disease in humans presents as localised lesions mainly on fingers, hands or the face, in the form of red blisters. The disease is self-limiting in immunocompetent persons. No specific treatment is available. There is no known evidence of human to human transmission of the virus.

Detailed explanation-5: -The reason behind this is that the structure of cowpox virus is quite similar to that of smallpox and as such the antibodies developed during the infection of cowpox were able to fight against smallpox. This is turn prevented the occurrence of the disease.