Japan suspends use of two vaccines

Japan has suspended the use of two vaccines made by Pfizer, Inc., and Sanofi-Aventis as it investigates the deaths of four children that have been linked to the drugs. The children, who ranged in age from six months to two years, died after being given either Prevnar, produced by Pfizer, or ActHIB, produced by Sanofi, or a combination of drugs, according to NASDAQ.com. ActHIB is a type b haemophilius influenza vaccine and Prevnar is a pneumococcal conjugate vaccine. This is not the first time Prevnar has been at the center of controversy. In 2009, Pfizer suspended a batch of the drug in the Netherlands following the deaths of three infants around the time of vaccination, NASDAQ.com reports. There proved to be no correlation. The Japanese health ministry has said the suspension will be in place until the results of an investigation by medical experts is known....