KOLKATA : After scanning covid-19 data of 29 countries across the world, a group of city-based researchers has suggested that factors such as BCG vaccination in developing nations like India have led to a situation where the rate of contamination and fatality from the disease is less than that in the developed world.
The bacille Calmette-Gurin (BCG) vaccine has a documented protective effect against meningitis and disseminated TB in children, according to the World Health Organisation.
It is part of the mandatory childhood immunization programme in many countries including India. "Our research showed that the rate of affected people is significantly lower in countries like ours than developed nations which did not make BCG vaccination