Smallpox is due to
The correct option is (C) Virus
A person can get smallpox by coming into contact with infectious droplets left behind by an infected individual. The deadly Variola virus, which causes smallpox, is a highly contagious illness. This infectious condition has no known cure. However, it can be avoided by getting vaccinated.
The airborne illness, called smallpox, spreads more quickly and is mostly brought on by an infection with the fatal virus variola.
Variola minor and Variola major are the two subtypes of the variola virus. The orthopoxvirus genus includes the deadly variola virus, which is a member of that group. This virus's structure is similar to that of bricks, and its genetic material, DNA, which has the form of a dumbbell, makes up the majority of the virus. To reproduce within the host cell, the DNA in the core contains essential proteins. This illness has an approximate 7 to 19 days incubation period, which is followed by a high fever and the development of rashes on the face, hands, arms, legs, etc.
Usually, 7 to 19 days after the variola virus infection, symptoms start to show. Following the incubation period, the general symptoms listed below manifest.
Smallpox is due to Virus