India’s expert group on vaccinations, Negvac, has discussed the need for booster shots for Covid-19 but more scientific evidence is being studied for any decision, a top official said on Tuesday during the routine government briefing on Covid-19. The need for boosters, however, has been underscored by the spread of the Delta variant, which has shown significantly more resistance to vaccines than others. “We were doing two kinds of surveillance - to monitor variants of concern (coming from outside) and to monitor the impact of the Delta variant in the country. “The Delta variant almost took over the original variant as the main variant responsible for the new infections that were being reported,” said Singh. “The increasing trend of reproduction number in some states is cause of concern, although there is stabilisation in Covid-19 cases in the country,” said Aggarwal.

Source: Hindustan Times August 11, 2021 00:11 UTC