Sentence examples for flu isolates from inspiring English sources

To study the origins of the three 20th century pandemic flu viruses, Robert Webster of St . JudeChildren's Research Hospital in Memphis, Tennessee, and his colleagues took DNA sequences of thousands of flu isolates dating back as far as the 1930s--as 1930s--ashe 1918 strain--and fed them into models that calculate the most likely evolutionary relationships betwell them.

Under the new plan, CDC, in a collaboration with the Association of Public Health Laboratories (an affiliation of U.S. state and local health labs), will put all sequence information on the several hundred different flu isolates it studies every year into publicly accessible databases such as GenBank as soon as possible.

Moreover, the current H1N1 swine flu isolates are not able to express any form of PB1-F2 since multiple Stop-codon mutations only allow the expression of the first 11 amino acids.

The new protein, named PB1-F2 originates from an alternative open reading frame in the PB1 polymerase gene and it is present in most human and bird flu isolates [4], [5].

This complicates the development of cross-protective immunity i.e. the ability to cover several different isolates; rather, influenza vaccines must regularly be updated to match existing seasonal epidemic flu isolates.

Notably, the two PB1-F2 proteins, which were derived from the PR8 isolate and from the Spanish flu isolate, differ in amino acid 66, which is a Ser in IAVSF2 and an Arg in IAVPR8 (Fig. 1); this mutation, which accounts for the difference in pathogenicity [7], is within the mitochondrial targeting sequence [9].

"Even with swine flu we isolate people, and this disease is much more dangerous".

One of the mutations is already common in the wild, Kawaoka said, appearing in all 46 bird flu viruses isolated from people in Egypt between 2009 and 2011.

In the late nineteen-seventies, a strain of H1N1 — "swine flu" — was isolated in northern China, near the Russian border, and it later spread throughout the world.

A variant of the Type A flu virus isolated from a Westchester woman in November 2004 and grown in county labs was chosen by the national Centers for Disease Control and Prevention to be included in the next flu vaccine.

The study also showed that some of the flu strains isolated in Vietnam had particular genetic changes that virologists have been watching for, fearing that these changes would make them more lethal.