serious illness. spikes inmild cases among students have prompted several universities princeton and cornell to move final exams online. and the military continues to mandate covid shots as a matter of force readiness with the marines reporting 94% of their ranks are fully vaccinated. late this afternoon advisory panel voted in favor much new language recommending mrna pfizer and mow concern in that over the johnson & johnson shots for adults. meeting came amid ongoing concerns over extremely rare yet somewhat elevated levels of blood clots in some johnson & johnson vaccine remuch sip cents. bret? bret: jonathan serrie in atlanta. thank you. let s bring in marty makary. let s start there with the j and j. how concerned should j and j shot takers be and should they