From this video, viewers of our channel a2zclassroom2020 may get idea regarding:
What is Novel Coronavirus or COVID-19?
History of Corona viruses.
Origin of Corona viruses.
Major Symptoms.
Types of Corona Viruses.
Types of Human Corona Viruses.
Way of Transmission.
How to prevent Corona Viruses.
Pre-cautions against Corona Viruses.
Necessary diets.

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