have had to astrazeneca jab is? a pfizerjab. hide have had to astrazeneca ab is? a pfizer ab. ~ ., have had to astrazeneca ab is? a pfizer ab. . . . , ., pfizer ab. we are currently having data pfizerjab. we are currently having data coming pfizerjab. we are currently having data coming through pfizerjab. we are currently having data coming through from - pfizerjab. we are currently having data coming through from trials i data coming through from trials where of mixing of the vaccines to tell us whether that will make a difference of the immune response to how hard it is to get side effects in the short term and that information will come through and give us a bit more clarity about whether you get the same vaccine again whether you are a different dose. a, , a, dose. and the other question eo - le s dose. and the other question people s mines dose. and the other question people s mines is dose. and the other question people s mines is maybe - dose. and the other