A new study published in the Lancet medical journal says that people fully vaccinated with the Pfizer-BioNTech vaccine are likely to have more than five times lower levels of neutralizing antibodies against the Delta variant first identified in India compared to the original strain. The study also shows that levels of these antibodies are lower with increasing age, and that levels decline over time, providing additional evidence in support of plans to deliver a booster dose to vulnerable people. Yahoo News reports that experts caution that these findings don’t necessarily mean Pfizer’s vaccine won’t shield you at all from the Delta variant. More research needs to be done on exactly how antibodies correlate to immunity against the virus, as antibody levels alone do not indicate how effective a vaccine may be. NDTV Also Yahoo News
