However, it was the publication of "The Logic of Animal Conflict," by Maynard Smith and Price in 1973 that introduced the concept of an ESS into widespread circulation.
A study published 24 March in Science Translational Medicine shows that even though nearly a century separates the widespread circulation of the two viruses in humans, mice given a vaccine against the 1918 strain produced antibodies that "neutralized" the novel 2009 strain.
During the eclipse phase, the virus evolves immune evasive characteristics, which when accumulated sufficiently permit a new phase of widespread circulation.
The three outlets put what they called new excerpts from an old video into widespread circulation — despite the fact that his former employers, CNN and MSNBC, had the whole video all along.
In January 2005, Churchill's work attracted publicity because of the widespread circulation of a 2001 essay, "On the Justice of Roosting Chickens".
Many scientists now believe that another influenza pandemic is inevitable some time soon.These concerns might be little more than another background worry if it were not for the fact that there is currently a strain of bird flu in widespread circulation to which humans have no natural immunity.
During the 2014 2015 influenza season, widespread circulation of antigenically and genetically drifted A(H3N2) viruses provided an opportunity to evaluate subtype-specific vaccine effectiveness (VE) of quadrivalent LAIV (LAIV4) and IIV in children.
We found MCV prevalence among participants was 79.3% with a 6.6% annual seroconversion rate, which suggested widespread circulation of the virus.
Ultimately it is the stepmother's disruptive, disturbing, and divisive presence that invests the film with a degree of fascination that has facilitated its widespread circulation and that has allowed it to take such powerful hold in our own culture".
Our data support the widespread circulation of EV71 at least a decade before its reported emergence in 2012.
