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Flu vaccines protect people by activating white blood cells that, in turn, boost the development of antibodies to the flu, a new study suggests.
Flu vaccines protect people by activating white blood cells that, in turn, boost the development of antibodies to the flu, a new study suggests.
Seniors seem to get a weaker boost to their immune system following a flu shot than young people do, a small study shows.
Seniors seem to get a weaker boost to their immune system following a flu shot than young people do, a small study shows.
Mild winters where few people catch the flu tend to be followed by serious flu outbreaks the next year, a new study finds, suggesting that global warming could mean harsher flu seasons ahead.
Mild winters where few people catch the flu tend to be followed by serious flu outbreaks the next year, a new study finds, suggesting that global warming could mean harsher flu seasons ahead.
While flu activity remains high across the United States, there are signs that the number of infections may be leveling off, federal health officials reported Friday.
While flu activity remains high across the United States, there are signs that the number of infections may be leveling off, federal health officials reported Friday.
Forty-eight states are now reporting widespread flu activity, up from 47 last week, and the virus is proving particularly dangerous for the elderly, U.S. health officials reported Friday.
Forty-eight states are now reporting widespread flu activity, up from 47 last week, and the virus is proving particularly dangerous for the elderly, U.S. health officials reported Friday.
If the headlines are any indication, this year's flu season is turning out to be a whopper.
If the headlines are any indication, this year's flu season is turning out to be a whopper.
Sporadic shortages of both the flu vaccine and the flu treatment Tamiflu are being reported, as this year's intense flu season continues, according to a top U.S. health official.
Sporadic shortages of both the flu vaccine and the flu treatment Tamiflu are being reported, as this year's intense flu season continues, according to a top U.S. health official.
With the United States in the throes of one of the worst flu outbreaks in years, health-care experts say there are ways you can fight back and protect yourself from the virus.
With the United States in the throes of one of the worst flu outbreaks in years, health-care experts say there are ways you can fight back and protect yourself from the virus.
Flu vaccination rates among U.S. children were lower than expected over a recent five-year period, a new study reports.
Flu vaccination rates among U.S. children were lower than expected over a recent five-year period, a new study reports.
Flu continues its march across the United States, with 47 states now reporting widespread influenza activity, up from 41 last week, federal health officials reported Friday.
Flu continues its march across the United States, with 47 states now reporting widespread influenza activity, up from 41 last week, federal health officials reported Friday.
