Those at high risk for serious pneumonia should be revaccinated six years after the first dose. Older people who have had transplant operations or those with kidney disease may also require a revaccination. Side effects include pain and redness at the injection site, fever, and joint aches. Rarely, such local reactions can be severe. Even if a person is mistakenly re-vaccinated before the effects of the first vaccination have worn off, the risk for severe side effects is very low.
Allergic reactions are very rare.
Because the vaccine is inactive, it is safe for pregnant women and people with immune deficiencies. All rights reserved.