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What is going on? there is data coming from places like israel that suggest after a period of six to eight months, the efficacy of the mrna vaccines, particularly the pfizer vaccine may start to wayne and that s unclear if it maybe lower levels of neutralizing antibodies or whether it s just that we have the prevalence of these more transmissible aggressive strains like delta. we always expected at some point we needed to boost and i expect we ll start doing that with the folks that are most vulnerable who are holder or immune compromised in someway. probably, eventually, everybody in this country will need a booster in the next several months. that doesn t surprise me. let me give the numbers from what you said because you said this follows what we re learning out of israel and the data suggesting the pfizer s vaccinefectiveness against the coronavirus has fallen and the ....
Places like israel that suggest after a period of six to eight months, the efficacy of the mrna vaccines, particularly the pfizer vaccine may start to wayne and that s unclear if it maybe lower levels of neutralizing antibodies or whether it s just that we have the prevalence of these more chance tran missble aggressive strains like delta. we always expected at some point we needed to boost and i expect we ll start doing that with the folks that are most vulnerable who are holder or immune compromised in someway. probably, eventually, everybody in this country will need a booster in the next several months. that doesn t surprise me. let me give the numbers from what you said because you said this follows what we re learning out of israel and the data suggesting the pfizer s vaccinefectiveness against the coronavirus has fallen and the numbers says 39% last month it was 64%. ....