ReutersSanofi recalling some H1N1 vaccine, US CDC saysReutersWASHINGTON, Dec 15 (Reuters) - Vaccine maker Sanofi-Aventis SA SASY.PA> (SNY.N) is recalling four lots of its pediatric H1N1 swine flu vaccine because it is not as potent as it should be, US officials said on Tuesday. There is no safety concern and ...Kids' Swine flu shots recalled; not strong enoughThe Associated PressSanofi Recalls 800000 Swine Flu Shots on PotencyBloombergSanofi-Aventis Recalls Some H1N1 Vaccine Due To Potency-ReutersWall Street JournalMarketWatch -FOXNews -Peoria Journal Starall 1,126 news articles »