Reader Comments (3)
Post a new comment on this article
-
0 Responses09 Aug 2013
18:45 GMT
Most RecentMedia coverage of this article Posted by PLOS_ONE_Group on 09 Aug 2013 at 18:45 GMT -
1 Response07 Aug 2013
20:49 GMT
Most RecentWhat are the implications for infant vaccination? Posted by helenhightops on 07 Aug 2013 at 01:37 GMT