The study found a modest reduction in neutralisation by a factor of 1.95 against B.1.617 variant compared to vaccine variant D614G, Bharat Biotech noted. Despite this reduction, neutralising titre levels with B.1.617 remain above levels expected to be protective, it added. Data released on sunday by Union health Ministry showed that more than 1.84 crore COVID-19 vaccine doses are still available with states and UTs, while nearly 51 lakh doses are in the pipeline and will be received by them within the next three days. The Centre has so far provided more than 20 crore vaccine doses (20,28,09,250) to states and UTs free of cost, it said.