Seasonal flu shot may increase H1N1 risk [View All]

[spotbird]

Source: cbcnews.ca

Preliminary research suggests the seasonal flu shot may put people at greater risk for getting swine flu, CBC News has learned.

...

It's important to validate the information to make sure it's not just a fluke, and that the observation is confirmed elsewhere such as in the Southern Hemisphere, which just completed its seasonal flu season, Low added.

Four Canadian studies involved about 2,000 people in Ontario, Quebec, British Columbia and Alberta, sources told CBC News. Researchers found people who had received the seasonal flu vaccine in the past were more likely to get sick with the H1N1 virus.

Read more: http://www.cbc.ca/health/story/2009/09/23/flu-shots-h1n1-seasonal.html

---

There are so many unknowns.