An analysis of Dallas County's massive West Nile virus (WNV) outbreak in 2012 found that it was preceded by an unusually mild winter and favored previously known hot spots, researchers reported today in the Journal of the American Medical Association (JAMA).
Cambodian health officials have identified another H5N1 avian influenza case, in a 58-year-old man who tested positive for flu in January but whose samples revealed co-infection with H5N1 in routine retrospective tests.
The risk of Guillain-Barre syndrome (GBS) after flu vaccination was much lower than the risk of GBS after flu infection, according to a study today in Lancet Infectious Diseases.
Canadian researchers used a self-controlled study design and data from universal healthcare systems in Ontario from 1993 through 2011. They determined exposures to flu vaccine and flu illness from physician billing claims.
A meta-analysis of 34 randomized clinical trials (RCTs) suggests that seasonal influenza vaccines can provide significant protection against flu even if the circulating flu strains don't match those in the vaccine, according to a Canadian team of researchers.
Indonesia's health ministry today announced that a 2-year-old boy died from an H5N1 avian influenza infection, according to a translated statement posted on FluTrackers, an infectious disease message board.
Vaccine advisors today voted in favor of recommending a newly approved recombinant flu vaccine for adults who have an egg allergy.
Scottish researchers report that they found increased levels of cytokines—chemical messengers that typically promote inflammation—in patients with influenza and rhinovirus infections.
The findings appear to support the view that a "cytokine storm" contributes to severe illness in flu patients.
The US Food and Drug Administration (FDA) has approved Sanofi Pasteur's Fluzone Quadrivalent (four-strain) injectable flu vaccine, the company announced today.
A study from a Wisconsin team indicates that influenza vaccination does not increase the risk of infection with other respiratory viruses, which supports the validity of a common method for assessing flu vaccine effectiveness (VE) in observational studies.
If the H7N9 influenza virus now circulating in China evolves into a pandemic strain, the world is likely to have great difficulty providing adequate supplies of an effective vaccine in time to blunt its impact, according to a viewpoint article by three experts in the Journal of the American Medical Association (JAMA).
