Hello all, well it's that time of year again for me. Started the seasonal flu shots last week and have the pneumo vaccine on board. Just about every person who received the vaccine has mentioned to me that the arm was/is so sore when they returned with a family member to receive theirs. Last year I didn't hear as many complaints about the vaccine making the arm so sore. Would anyone know if there are any differences year to year with the pneumo vaccine? Influenza yes, but pneumonia I'm not sure.