India is grappling with a devastating second wave of coronavirus that’s far more fatal than the first — and scientists say the surge could be partially due to mutating strains. The World Health Organization just reclassified the B.1.617 strain, which was first identified in India, as a “variant of concern” — which indicates that the variant […] Read more
Pfizer and BioNTech announced Monday their coronavirus vaccine was more than 90% effective in preventing Covid-19 among those without evidence of prior infection, hailing the development as “a great day for science and humanity.” “I think we can see light at the end of the tunnel,” Pfizer Chairman and CEO Dr. Albert Bourla told CNBC’s Meg Tirell on […] Read more