This regular shift is what's called antigenic drift. From Wordnik.com. Reference
Influenza strains typically mutate gradually in what's called antigenic drift. From Wordnik.com. [Los Angeles Business News - Local Los Angeles News | Los Angeles Business from bizjournals] Reference
Only the influenza Type-A virus is capable of what is known as antigenic shift. From Wordnik.com. [WN.com - Articles related to First flu virus detector in JDWNRH] Reference
These changes, known as antigenic shifts, can sometimes result in very deadly strains. From Wordnik.com. [Influenza Glossary] Reference
This shape-shifting, called antigenic drift, is why influenza vaccines-which are designed. From Wordnik.com. [WN.com - Articles related to Why bird flu has not become a pandemic] Reference
The name for which an organisms it bitten by an animal carrying tryanosoma is called antigenic variation. From Wordnik.com. [CreationWiki - Recent changes [en]] Reference
New viral strains arise through a process called antigenic shift, or reassortment, when at least two viruses combine. From Wordnik.com. [Scientists Fear People Spread New Swine Flu] Reference
One area of hemagglutinin, especially, known as antigenic site Sa, appears highly similar between the 2009 and 1918 strains of influenza. From Wordnik.com. [BusinessWeek.com --] Reference
This strategy of switching one's surface antigens, termed antigenic variation, is used by numerous eukaryotic, bacterial, and viral pathogens. From Wordnik.com. [Small Things Considered] Reference
This influenza virus, like all influenza viruses, can mutate via a process called antigenic drift, which can make it either more or less virulent. From Wordnik.com. [Avoiding the swine flu | The Blog of Michael R. Eades, M.D.] Reference
These errors, which result in what is called antigenic drift, explain why the flu virus is different each season and why new vaccines are needed each year. From Wordnik.com. [Influenza Glossary] Reference
These small changes in the virus are called antigenic drift, and over time changes in the virus can accumulate to the point that last year's vaccine is no longer effective. From Wordnik.com. [Avian Flu Diary] Reference
This regular shift is called antigenic drift. From Wordnik.com. [FOXNews.com] Reference
N.A. Mitcbison's methods to retain their antigenic power10. From Wordnik.com. [Peter Medawar - Nobel Lecture] Reference
It certainly was an antigenic shift and not an antigenic drift. From Wordnik.com. [H1N1 vaccines for kids recalled] Reference
Flu viruses continually adapt to their hosts by antigenic drift. From Wordnik.com. [The Silliest Thing Yet, or Sheer Genius? - The Panda's Thumb] Reference
Some antigenic shifts result in local epidemics or global pandemics. From Wordnik.com. [Chapter 2] Reference
This is called an antigenic shift and it occurs at irregular intervals. From Wordnik.com. [Chapter 2] Reference
New virus strains emerge through a process of antigenic shift, occurs, or if at least two viruses combine. From Wordnik.com. [Swine Flu Crossover?] Reference
Monoclonal Antibody is a single type of antibody that is directed against a specific antigenic determinant. From Wordnik.com. [Monoclonal Antibodies in Clinical Research] Reference
The main point is that I've proven the protein is antigenic enough to elicit an antibody response in a mouse. From Wordnik.com. [Invasion]
The several isolates of BT are placed under 14 serotypes based on their flagellar or 'H' antigenic properties. From Wordnik.com. [Chapter 8] Reference
This latter vaccine contains 5 antigenic components, in contrast to the 3000-odd that were in the old vaccine. From Wordnik.com. [On Thursday, the Legg report will be published along with...] Reference
This conflicted with the prevailing concept which was that such a small protein as insulin could not be antigenic. From Wordnik.com. [Physiology or Medicine 1977 - Press Release] Reference
More than one type of delayed hypersensitivity may follow a single antigenic challenge, and reactions may overlap. From Wordnik.com. [Archive 2006-03-01] Reference
The infant skin and gut become colonised within hours by millions of bacteria, each of which may have hundreds of different antigenic proteins or polysaccharides on its surface. From Wordnik.com. [On Thursday, the Legg report will be published along with...] Reference
It may therefore be associated with antigenic shift. From Wordnik.com. [PLoS ONE Alerts: New Articles] Reference
Scientists present new perspective on antigenic drift of flu viruses. From Wordnik.com. [THE MEDICAL NEWS] Reference
It is not possible to dissect the mechanism of antigenic drift in people directly, notes Yewdell. From Wordnik.com. [Infection Control Today Site Wide Content Feed] Reference
"No one is sure exactly how the antigenic drift of flu viruses happens in people," says Dr. Yewdell. From Wordnik.com. [R&D Mag - News] Reference
MD. "No one is sure exactly how the antigenic drift of flu viruses happens in people," says Yewdell. From Wordnik.com. [Infection Control Today Site Wide Content Feed] Reference
It is not possible to dissect the mechanism of antigenic drift in people directly, notes Dr. Yewdell. From Wordnik.com. [R&D Mag - News] Reference
This process dictates allelic exclusion and ensures only one unique antigenic specificity is displayed per cell. From Wordnik.com. [Medlogs - Recent stories] Reference
One of the proteasome isoforms, known as immunoproteasome, enhances the generation of specific antigenic epitopes. From Wordnik.com. [PLoS ONE Alerts: New Articles] Reference
Horn D, Barry JD (2005) The central roles of telomeres and subtelomeres in antigenic variation in African trypanosomes. From Wordnik.com. [PLoS ONE Alerts: New Articles] Reference
"We propose a model for antigenic drift in which high - and low-affinity influenza virus mutants alternate," says Dr. Yewdell. From Wordnik.com. [R&D Mag - News] Reference
Further sequence analysis of additional APMV-5 strains will help us understand the antigenic and genetic variation among APMV-5 strains. From Wordnik.com. [PLoS ONE Alerts: New Articles] Reference
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