Decision time for researchers of deadly bird flu

Related: Cold and flu

1. Cold and flu
   1. Six more diagnosed with new bird flu in China
   2. Higher humidity may thwart flu virus
   3. Flu vaccine barely worked in seniors
   4. New clue shows why some never get a cold
   5. Sniffles, flu, fever: When it's OK to work out
2. Top health stories
   1. 'Why would we wait?': Sisters face Jolie cancer dilemma
   2. Fitness protects men from cancer, even 20 years later
   3. Gymnophobics are real-life 'never-nudes'
   4. Chorus of critics greets new psychiatric manual
   5. Aimee Copeland gets new high-tech hands
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