Variant. joining me now is doctor which a block stock, msnbc medical contributor and founder and ceo of advancing health equity. doctor blackstock, thank you so much. the president is said to have ba.5, it's spreading like wildfire. it's come for 75% of all new cases. how protected from the sub variant or those of us who have been vaccinated and boosted? >> good morning, sam. thanks so much for having me. so, people should know that the current vaccines are directed towards the wild type virus, this is the original virus from the year 2000. well these vaccines are still protective against the ...