Already facing one rival to its blockbuster pneumococcal vaccine Prevnar, Pfizer could have another to contend with, after Affinivax reported positive phase 2 results with its ASP3772 candidate ...

After shipping, Prevnar 20 may arrive at temperatures between 2 ºC to 25 ºC (36 ºF to 77 ºF). Upon receipt, store refrigerated at 2 ºC to 8 ºC (36 ºF to 46 ºF). Do not freeze. Store ...

A phase 2 study in children will also start early in ... gradually adding new versions of Prevnar that expand the number of serotypes covered, but analysts think that position is now under threat.

Questions and answers are republished by permission. Q: I am in my 70s and have previously had the pneumonia vaccination and then the Prevnar 13 vaccination. Now they have Prevnar 20, and the ...