And, though a flu shot won't give you the flu, its protection doesn't kick in for two weeks from the time of injection.
In the end, they couldn't prove that the flu shot helps the elderly survived the flu season.
Markel was tapped by the CDC to study what worked and what didn't during the 1918 flu disaster.
Although its protective action won't take effect for about two weeks, the flu season hasn't peaked.
Global air travel is down 7.6% (the swine flu epidemic hasn't helped), and hotels in the U.S. and Europe are running well less than three-quarters full.
Nardini says they both slept better and had more energy, and she didn't get a cold or the flu all month as she usually does in the winter.
It isn't covered by basic Medicare like the flu vaccine, but instead falls under the Medicare drug benefit, with its complicated co-pay system.
The flu epidemic didn't spare Hollywood as actor Tommy Lee Jones reportedly missed out of picking up his statue for outstanding male actor in a supporting role for "Lincoln" because he was sick.
Vaccinated people in that age group had only a 9 percent lower chance of going to the doctor with flu symptoms from the main virus than people who didn't get the shot.
The CDC teams do check tools like the Google Flu Tracker, and Brammer says that while the results don't always match up, Google is close to the CDC's own findings most of the time.
She might have passed it off as a bout of the flu if it hadn't been for the tremendous pain in her upper back.
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While researchers haven't developed a vaccine to fight the new swine flu, it can be treated with antiviral drugs Tamiflu and Relenza, the same drugs used on the regular flu.
The U.S. may be coming down with the flu so the rest of the world is getting ready for - I don't know what - pneumonia?
H5N1 flu hasn't been reported in the U.S., but the virus has infected more than 600 people in other countries and appears to be resistant to traditional anti-viral treatments, researchers said.
If there is a huge amount of mild swine flu we don't know about, the proportion of cases that are serious is correspondingly reduced.
Slippery Rock University isn't the only school making changes to graduation ceremonies because of swine flu fears.
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The answer: The vaccine isn't a guarantee that you'll be flu-free.
Peterson isn't against all vaccines -- she and her daughters have already gotten the seasonal flu vaccine, for example.
But antibodies against flu viruses you've encountered in the past can't protect you from new influenza subtypes that are very different immunologically from what you had before.
Most of the time, people who get sick from swine flu have been in contact with pigs, and the virus doesn't spread from person to person.
All I want to know - all this researcher wants to know but can't find out - is simple stuff: how many people who had swine flu in the first few months since it emerged are believed to have caught it abroad?
If there are cases of swine flu at Sherman ISD, and the federal guidelines suggested that children shouldn't necessarily be sent home, the school may decide to dismiss the students anyway, he said.
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But the virus doesn't appear to notably sicken infected birds, unlike H5N1, another avian-flu virus that is deadly in birds and occasionally infects people.
Perry's flu hasn't been confirmed as an H1N1 strain, but a third roommate, the first to get sick, they said, was diagnosed with H1N1.
Around the same time Chiron, one of the world's largest vaccine suppliers, announced it couldn't ship 4 million doses of flu vaccine because they didn't meet sterility standards.
Flu experts still don't know whether a significant number of patients are sick enough to spread the virus, despite not being feverish.
Margaret Duchez, 94, did not have the flu, but remembers that in 1918 her grandmother locked the door so that she couldn't go outside during the pandemic.
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