Dr. Howard Smith Oncall

  Vidcast:  https://youtu.be/3tpTX7uovOY   The Delta CoVid variant B.1.617.2 that arose within India and carries 4 mutations that make it more transmissible and dangerous is spreading throughout the US and the world and creating infections even in those vaccinated. So far, the available data is sparse, but here's what we know.   Public Health England is tabulating the best data to date.  Their numbers indicate that most vaccines are 10 percentage points less effective against Delta with prevention of a symptomatic infection in 79% rather than 89% or more against the initial strain.  Studying the 238,773 CoVid infections that did occur in vaccinated Brits, 3.8% required an ER visit, 2.9% required hospitalization, and 0.8% died.   What to do?  All those vaccinated should wear masks indoors or outdoors in crowds, distance, and cleanse very carefully. Avoid indoor dining and prolonged indoor exposures.  Especially key for those over 65 and those with chronic medical conditions  If you test positive, quarantine fo