amid an unsettling report at present of tamiflu resistance in a danish a(h1n1) affected person,
microsoft office 2010 update key, comes a review while in the new england journal of medication tracing the swine flu's 90-year evolution.
the present flu strain has genetic roots in an illness that sickened pigs at a swine indicate in 1918 in cedar rapids,
microsoft office Home And Student 2010 activation, iowa. a near-century of enhancement given that then will probably feature this flu's accidental resurrection from an extinct strain.
here's what most likely went down. at the same time the 1918 flu pandemic was spreading between people,
microsoft office 2010 pro plus serial, pigs have been hit with a related respiratory illness. early experiments confirmed the 1918 swine virus including a human strain emerged about the very same time.
based on the authors of the new paper, there was a short-term "extinction" of this strain of virus from humans in 1957. but then it reemerged 20 years later in a small 230-person outbreak in 1976 between soldiers in fort dix, new jersey. that outbreak did not extend beyond the military base.
however the next year h1n1 reemerged in people during the soviet union, hong kong,
office pro plus 2010 keygen, and northeastern china. the genetic origin of that 1977 strain turns out not to be the 1976 fort dix strain. instead, it was closely related to a 1950 human strain.
which means that given the genetic similarity with the two strains,
microsoft office Pro 2007 product key, reemergence was possible due to an accidental release during laboratory studies of your 1950 strain that had been preserved as a "freezer" virus.
ouch. hate it when that happens.
the authors hypothesize that concerns concerning the fort dix outbreak stimulated a flurry of research on h1n1 viruses in 1976, which led to an accidental release and reemergence of your previously extinct virus a yr later. the reemerged 1977 h1n1 strain has been circulating in various seasonal influenzas ever since—including today's.
or maybe it wasn't such an accidental a release? conspiracists, restart your engines.