Word: virus
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...Specifically, the NEJM study showed that it takes 90 micrograms of active ingredient in each of at least two doses of vaccine to get the best result. By contrast, the current seasonal flu vaccine contains 45 micrograms of active ingredient - from three different strains of flu virus - and you need only one shot to achieve good protection against all three strains of the flu virus. "Having a vaccine that would require 90 micrograms times two in and of itself would not and cannot be the answer to where we want to be," Anthony Fauci, director of the National Institute...
...Then there is the matter of having the right strains of virus in the vaccine should a human pandemic ever occur. The virus used to make the Sanofi Aventis vaccine came from a Vietnamese patient who was infected with H5N1 in 2004. The viruses from that sample are part of a group that scientists call clade 1. But the viruses that have recently spread so rapidly among birds from Asia to Europe and Africa are part of a new group called clade 2. Preliminary evidence suggests that there?s not a lot of cross-reactivity between the two clades. That...
...gunning for the foot. “It still stuck out pretty bad,” he says now, five months removed from the experience. “Who knows, I may still patent that thing.” Combine the broken hoof with a month-long virus and a host of pesky injuries, and it’s not hard to see why the Michigan native doesn’t light up at the thought of this season’s first half. Coach Ted Donato ’91 says of the junior, “Ryan...
...official warnings about bird flu have been growing scarier in the past few days. In a speech last Sunday, Health and Human Services Secretary Mike Leavitt advised folks to stock up on tuna fish and powdered milk in case the bird flu virus mutates into a form that could easily infect people. Agriculture Secretary Mike Johanns recently told reporters, "It would be almost biblical to think we would be protected." Then there was Robert Webster, the noted flu virologist from St. Jude Children's Research Center, who said on national television Tuesday night that he had a three-month supply...
...that 1 million adults in the U.S. each year come to know as shingles. Merck is awaiting FDA approval for its shingles shot, Zostavax, which is designed to prevent shingles in those who are most vulnerable to the disease--adults over age 60. Shingles occurs when the chicken-pox virus from a childhood infection is reactivated--usually by the decline in immunity that comes with age--and travels from the nerve cells where it has remained dormant, all the way to the skin, where it blossoms into the condition's hallmark lesions. Zostavax contains a crippled form of the chicken...