A Comprehensive review on COVID-19: From clinical characterizations to treatment

In December 2019, the outbreak of COVID-19 started which was originally believed to be pneumonia. Later on, after studies of vaccination and sign, symptoms revealed it to be a SAR-CoV (severe acute respiratory syndrome coronavirus 2), results in infection of the lower respiratory areas that centrals to risky breath shortness and even death. This pandemic not only brought massive human lives but also economic as well as societal loss, rising death numbers in millions, 21st century’s deadliest viral disease till now. The world economic forum supported and appreciated each step for the treatment of COVID 19. Leading supporters to work immensely for the vaccine’s formulation. Though, being an RNA virus, it deploys its genetics speedily and makes it hard almost impossible for the next mutated strain to be targeted by the same vaccine. Structurally it is like crown with spikes on it, that gets attached to the host cell. COVID-19 identified in the year 2019 but documented in February 2020, by the World Health Organization.