Seasonal Flu Strain May Have Mutated

Older kids, like adults, get effective H1N1 inoculation from just 1 dose

(NEWSER) - Kids over age 9 can safely join adults in receiving just one shot of swine flu vaccine, the Washington Post reports. A test of 650 subjects showed 76% of children between 10 and 17 had a response to a vaccine produced by Sanofi Pasteur, and it was strong enough that protection from the virus could be assumed. Kids under 10 will still need two doses—only 25% to 36% of them exhibited a strong vaccine response. More»

(NEWSER) - With panic over the H1N1 flu virus on the wane, some Americans are pondering allowing themselves to become infected in hopes of building immunity against potentially more virulent strains, the New York Times reports. Doctors are split on the idea. "I think it's totally nuts," says a flu specialist. "We don't know enough about how this virus could react." More»

CDC official says it's no cause for alarm

(NEWSER) - Norwegian scientists say they've discovered a mutated version of swine flu in two patients who died and another who is severely ill. The mutation "could possibly make the virus more prone to infect deeper in the airways and thus cause more severe disease," said the nation's health institute. Bottom line from health officials in the US and with WHO: It's not a huge surprise and is no cause for alarm. More»

Supplies running low, manufacturers can't make more

(NEWSER) - Severe shortages of seasonal flu vaccines are expected across the country in coming weeks as supplies run short amid increasing demand. Manufacturers have committed their production to making H1N1 vaccines and lack the capacity to make any more seasonal flu vaccines this year. The director of the CDC told lawmakers yesterday that officials are “very frustrated” by the shortages but are powerless to prevent them, the New York Times reports. More»

Uncertainty of supply makes scheduling immunization clinics tough

(NEWSER) - Production delays that are slowing the distribution of the H1N1 flu vaccine could hardly have come at a worse time, with the death toll in young people mounting and antivaccine activists seizing on any chance to make their position heard. Experts point out that the H1N1 version uses the same formula as the seasonal flu vaccine: "One hundred million people get those every year, and we believe there's a very strong safety record for them," says a CDC official. More»