An Atlanta hospital and Emory University are testing a human vaccine for the H7N9 avian influenza virus that has sickened scores in China. The trial could provide an important tool for combating a possible pandemic, and it will also generate key knowledge about influenza vaccines generally, physician and Emory professor Mark Mulligan said. However, some experts argue production issues and other characteristics of influenza vaccination mean a vaccine would be inadequate for stemming a pandemic.

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