COVID 19- VARIANTS AND VACCINES:
Firstly, the term ‘COVID-19′ needs no explanation in today’s world. Most of us would have been pretty unaware of this before 2 years. Today, it...
masks
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Masks and their efficiency, all you need to know!
Owing to the pandemic of COVID, we are well aware of the concept of masks and their usage. However, there are mixed feelings and opinions...