amid an unsettling report now of tamiflu resistance in the danish a(h1n1) affected person, comes a research while in the new england journal of medicine tracing the swine flu's 90-year evolution.
the current flu strain has genetic roots in an sickness that sickened pigs at a swine show in 1918 in cedar rapids,
Office 2010 Pro Plus Activation Key, iowa. a near-century of development considering that then may well include this flu's accidental resurrection from an extinct strain.
here's what possible went down. simultaneously the 1918 flu pandemic was spreading amid people,
Office 2010 Home And Student, pigs had been hit which has a very similar respiratory illness. early experiments confirmed the 1918 swine virus along with a human strain emerged with regards to the very same time.
in accordance with the authors on the new paper,
Windows 7 Professional Product Key, there was a temporary "extinction" of this strain of virus from humans in 1957. but then it reemerged 20 years later in a very small 230-person outbreak in 1976 amid soldiers in fort dix, new jersey. that outbreak did not extend beyond the military base.
however the next yr h1n1 reemerged in people inside the soviet union, hong kong, 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 on the two strains, reemergence was likely due to an accidental release during laboratory studies on the 1950 strain that had been preserved as a "freezer" virus.
ouch. hate it when that happens.
the authors hypothesize that concerns regarding the fort dix outbreak stimulated a flurry of research on h1n1 viruses in 1976,
Microsoft Office 2007, which led to an accidental release and reemergence for the 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,
Office 2010 Pro X86, restart your engines.
Office 2010 Home And Student swine flu accidentall
Linear Mode
