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Kumkum Sutrakar

Class 10th
Maths
2 years ago

(b) variola virus

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Dileep Vishwakarma

2 years ago

Smallpox is caused by infection with the variola virus. The disease is spread through person to person contact, most often from inhalation of droplet nuclei expelled through the back of the throat (oropharynx) of an infected person.

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