File close up photo of Roche AG’s Tamiflu pills, known generically as oseltamivir, at the Center for Disease Control in Bangkok October 21, 2005. Researchers who have fought for years to get full data on Roche’s flu medicine Tamiflu said April 10, 2014, that governments who stockpile it are wasting billions of dollars on a drug whose effectiveness is in doubt. REUTERS/Adrees Latif/Files (THAILAND – Tags: HEALTH BUSINESS)