Question

What is introduced in the body during small pox vaccination?

• A. Antibodies
• B. leucocytes
• C. Antibiotics
• D. Attenuated virus

Answer 1

The correct option is D Attenuated virus

Smallpox is a serious viral disorder caused by the variola virus. Variola virus is an orthopoxvirus, an enveloped DNA virus. The infection starts by exposure of the virus in the nasopharynx and characterized by fever and malaise.

A vaccine is prepared from the killed and weakened form of a pathogen that is similar to the disease-causing agent. This vaccine is injected into an individual to induce the immune system against the microbes. The vaccine for smallpox is prepared from a weakened form of variola virus. Thus, during smallpox vaccination attenuated virus is introduced in the body that induces immunity against the infection.