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Possible Human Spread of Bird Flu

Limited Spread Within Family Not Bird Flu Breakout

Other Bird Flus, Other Human Infections

In 1997, the H5N1 bird flu broke out in Hong Kong. There were 18 confirmed human cases with six deaths. Human-to-human transmission took place, but it was very limited. No human flu developed.

In 2003, another H5N1 bird flu outbreak in Honk Kong resulted in one confirmed human infection but no human-to-human spread.

Also in 2003, a different bird flu -- H7N7 -- broke out in the Netherlands, Belgium, and Germany. There were 83 human infections and one death, although most human infections were mild eye infections. There was, however, human-to-human spread. No human flu developed.

CDC Bird Flu Hotline

The CDC has opened a bird flu hotline: (888) 246-2675.

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