COVID-19 pandemic-the learning continues

The Covid-19 pandemic is the most severe global health crisis of our time and greatest challenge to mankind after World War II. A combination of therapies including vitamins, hydroxychloroquine, steroids, plasma therapy and immunomodulators have proved to be effective in symptomatic cases but no specific drug or vaccine has been developed to fight covid-19 till date. Till the time new vaccine rolls out, trials are evaluating the efficacy of BCG in fighting against Covid-19. The Covid-19 with its high propensity of transmission, especially through asymptomatic carriers has been spreading rapidly since the outbreak of the disease. With the existing lacunas in ongoing preventive and management strategies and increasing risk of community transmission, the role of development of herd immunity in control of covid-19 can play a major role.