COVID-19 vaccines: the need of the hour

Coronavirus has invaded the whole world despite all necessary precautions. Several strategies and restrictions have been imposed to overcome the disease since the outbreak of covid19. To tackle this epidemic, getting vaccinated is the only effective way. Several vaccine types have been tested for covid19, including nucleic acid-based, protein-based, and whole virus-based vaccines. The clinical trial phase of several vaccines is underway, however;twenty vaccines have been used on a wide scale throughout the world, out of which six vaccines are granted in India. The current article is mainly focused on vaccines approved for use, their trials, and efficacy, and how they have been used during the pandemic to shed light on disease control.