COVID-19 was first identified in Wuhan City in December 2019 and spread throughout Hubei Province and other parts of China. After causing significant morbidity and mortality in China, by February 2020, it had spread to numerous other countries, infecting millions of people and causing a large number of deaths across the world.
The COVID-19 pandemic put a burden on almost all areas of the world including healthcare systems, education, industry, travel, etc. The pandemic revealed the vulnerability of the world-s healthcare systems and affected healthcare personnel significantly. The virus is able to attack not only the respiratory tract, but almost all the organs including the brain. Impacts on gut biota have also been noticed. The virus has caused both morbidity and mortality in humans without any geographical, cultural, or religious barriers. The emergence of new variants due to mutations in the virus has aggravated the problem. While the delta variant brought a s
