COVID-19 An update on oral symptoms, newer variants, second wave and vaccination drive in India — A Review

A serious threat to world now is the emergence of COVID-19 (Corona Virus Diseases-2019). When compared to its precursor virus, SARS (Severe acute respiratory syndrome – now called as SARS-CoV-1) and MERS (Middle East respiratory syndrome), this virus spreads more rapidly. The emergence of this virus happened in december 2019 in Wuhan. World Health Organisation announced this virus outbreak as a pandemic on March 202020. The current threat to the world is the emergence of second wave of COVID -19 that has shaken many countries in world and its peak in India was in the month of may 2021 which had drastically affected the country. Hence this review gives a comprehensive update on corona virus and its newer oral symptoms and about treatment approaches and vaccines currently available in India.