COVID-19: What are four elements that lead to formation of new pandemic waves? Know here

https://ift.tt/2gzFXIx a Union Health Ministry's media briefing on COVID-19, Dr VK Paul, Member (Health), NITI Aayog, explained the reasons behind the emergence of new pandemic waves and how they can be controlled or avoided. 

from Zee News :India National https://ift.tt/3jauhwt
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