It works really, really well. This today in Spiegel:
The researchers who develop vaccines hope, of course, that their products will work. This time around, however, even the developers themselves were surprised to see just how effective their products have turned out. Researchers from the Novartis pharmaceutical company, testing their swine flu vaccine this September, were astounded to find that just one dose was sufficient to produce copious antibodies in their inoculated patients. Similar news had already come from China, and GlaxoSmithKline followed shortly afterward, finding the same held true for its vaccine, which Germany is putting into effect as of this week. Unexpectedly, the company found a second shot for adults was unnecessary. The researchers who develop vaccines hope, of course, that their products will work. This time around, however, even the developers themselves were surprised to see just how effective their products have turned out. Researchers from the Novartis pharmaceutical company, testing their swine flu vaccine this September, were astounded to find that just one dose was sufficient to produce copious antibodies in their inoculated patients. Similar news had already come from China, and GlaxoSmithKline followed shortly afterward, finding the same held true for its vaccine, which Germany is putting into effect as of this week. Unexpectedly, the company found a second shot for adults was unnecessary.