As Germany launched its mass-vaccination program against the H1N1 flu virus on Monday, the government found itself fending off accusations of favoritism because it was offering one vaccine believed to have fewer side effects to civil servants, politicians and soldiers, and another, potentially riskier vaccine to everyone else. The German government prepared for its mass-vaccination campaign earlier this year by ordering 50 million doses of the Pandemrix vaccine. The vaccine, manufactured by GlaxoSmithKline, contains an immunity-enhancing chemical compound, known as an adjuvant, whose side effects are not yet entirely known. The Interior Ministry confirmed that it had ordered a different vaccine, Celvapan, for government officials and the military. Celvapan, which is made by U.S. pharmaceutical giant Baxter, does not contain an adjuvant and is believed to have fewer side effects.