A global debate has started whether a booster dose is needed after both doses of the Covid-19 vaccine. A booster dose may be needed to provide prolonged immunity and to fight off the mutant variants of the virus. Countries like France, Germany and Israel are considering a third dose as are the US and UK. Public health experts in India, however, say there is no need to follow suit. A majority of India’s population is yet to receive both doses of the Covid-19 vaccine. The World Health Organization has also called for a halt to booster doses until at least the end of September. The wait will enable at least 10% of the global population to be vaccinated.