Abstract

Severe Acute Respiratory Syndrome is the root cause of bronchitis and other serious illnesses. COVID 19 is a severe example of SARS, which the world is now dealing with. Seafood market in Wuhan, China, in the year 2019 was where the COVID 19 was originally discovered. Eventually virus spread to other nations. In February of 2020, the WHO classified it as a pandemic and gave it the COVID 19 designation. SARS is an infectious illness that may infect anybody. It can cause headaches, fevers, sore throats, sinus issues including colds and coughs, and breathing difficulties. SARS may spread directly or indirectly through a variety of channels. This review article's main goal is to concentrate on the most recent research on COVID 19 and its key features, such as its diagnosis techniques, prevention, control, improvement of mental health, nutritional value before and after COVID 19, vaccination, and long-term effects, as well as its new strains in the second wave and the impact of its second wave on various sectors, including education institutions, anganwadis, PHCs, healthcare workers, agriculture, and other.