Word: viruses
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Dates: during 2000-2009
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Shedding greater light on the human body’s first-line defense against the flu virus, the researchers found that the family of flu-fighting proteins—called the interferon-inducible transmembrane (IFITM) proteins—prevented or slowed down most virus particles from infecting human cells early in the lifecycle of the virus. The team reported its findings in an online journal on Thursday...
...Most of the time we find things that the virus needs,” said Abraham L. Brass, instructor in medicine at Harvard Medical School and Mass. General Hospital, who helped lead the study. “This time we found something our cells are using to resist the virus...
...shot of 2009 H1N1 vaccine, instead of two, may generate a sufficient antibody response against the virus in children ages six months to nine years, researchers report...
...youngsters is based on a similar recommendation in this population for seasonal flu vaccination. Because their immune systems are still developing, and because they are less likely to harbor existing antibodies from previous bouts with the flu, children are less able to generate protective antibodies against the influenza virus than adults, requiring two doses of the shot. (See what you need to know about the H1N1 vaccine...
...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...