only small % of children have side effect after vaccination. CDC

CDC & FDA normally take very long time( comparing to other developed countries) to evaluate and approve.

所有跟帖： 

• 以前我查过，呕吐腹痛几率很高，记不太清，大概各有三分之一。 -流水无痕- ♀ (0 bytes) () 12/16/2016 postreply 19:04:51