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Word: dose (lookup in dictionary) (lookup stats)
Dates: during 2000-2009
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...fact, a "normally functioning joint can withstand and actually flourish under a lot of wear," says Fries. Because cartilage - the soft connective tissue that surrounds the bones in joints - does not have arteries that deliver blood, it relies on the pumping action generated by movement to get its regular dose of oxygen and nutrients. "When you bear weight, [the joint] squishes out fluid, and when you release weight, it sucks in fluid," says Fries, explaining why a daily run or any other workout is useful for maintaining healthy cartilage...

Author: /time Magazine | Title: Is Running Bad for Your Knees? Maybe Not | 12/25/2009 | See Source »

...study, which involved 370 healthy children ages six months to nine years in Australia, researchers immunized half of the group with two doses of vaccine, each containing 15 micrograms (mcg) of the virus antigen. The other half received two doses containing 30 mcg of the antigen each. In both cases, the second dose was given 21 days after the first. The researchers found that 21 days after receiving only one shot, 92.5% of children in the 15-mcg-dose group and 98% of those receiving the higher dose had generated sufficient antibodies against H1N1...

Author: /time Magazine | Title: Will One Dose of H1N1 Vaccine Be Enough for Kids? | 12/21/2009 | See Source »

...results suggest that one shot of the lower-dose vaccine may generate just as many flu antibodies as the two shots U.S. children currently receive, each containing 7.5 mcg of viral antigen. The findings could factor into discussions that health officials have as they make up recommendations for next year's flu season. Having children get immunized only once, rather than twice, may help increase the percentage of kids who are protected against influenza...

Author: /time Magazine | Title: Will One Dose of H1N1 Vaccine Be Enough for Kids? | 12/21/2009 | See Source »

...until then, neither Nolan nor officials at the Centers for Disease Control and Prevention (CDC) are ready to ditch the second dose. For one thing, they note, the level of antibodies does not always translate to actual protection against the flu. "Lab studies are a proxy and work well," says Dr. Anthony Fiore, at the CDC's National Center for Infectious Diseases, who wrote an editorial accompanying the study in the Journal of the American Medical Association. "But until you can show that a single dose is as effective as two, it's probably too soon to pull away from...

Author: /time Magazine | Title: Will One Dose of H1N1 Vaccine Be Enough for Kids? | 12/21/2009 | See Source »

...cautious about the Australian data, says Fiore, is that the youngsters in the study were all healthy, with normal immune systems. But those who are most vulnerable to influenza are children with underlying conditions such as asthma or diabetes, who may need the added boost from a second dose to protect them from complications of the flu. He notes also that previous studies of other H1N1 vaccines showed slightly weaker antibody responses in children after a single dose than the Australian shot, which suggests one dose may not be enough to effectively combat influenza in youngsters...

Author: /time Magazine | Title: Will One Dose of H1N1 Vaccine Be Enough for Kids? | 12/21/2009 | See Source »

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