Various sub types of Seasonal Influenza virus are circulating and causing the present spurt in cases in the States of Rajasthan, Delhi, Haryana and Punjab.
Novel H1N1 (referred to as “swine flu” early on) is a new influenza virus causing illness in people. This new virus was first detected in people in the United States in April 2009. Other countries, including Mexico and Canada, have reported people sick with this new virus. This virus is spreading from person-to-person, probably in much the same way that regular seasonal influenza viruses spread.
It’s almost flu season, so keep washing your hands and get a flu shot. But no matter how well we prepare, the virus stays one step ahead. Researchers now think that’s because the flu virus doesn’t vacation—it remains on duty throughout the year, traveling the globe and mixing with other strains.
Researchers have identified which sites and cell types within the respiratory tract are targeted by human versus avian influenza viruses, providing valuable insights into the pathogenesis of these divergent diseases.
Avian influenza H5N1 virus affects much more than respiratory system: disseminates to gastrointestinal tract, immune and central nervous systems, and can be transmitted mother to fetus through placenta.
H5N1 influenza, also known as avian influenza, is considered a major global threat to human health, with high fatality rates. While little had been known about the specific effects of H5N1 on organs and cells targeted by the virus, researchers at Beijing University, Columbia University Mailman School of Public Health, and SUNY Downstate report in the September 29, 2007 issue of the Lancet detailed studies of human H5N1 victims that shed light on the anatomic distribution of the virus and its pathogenesis.
Researchers at the Institute of Bioengineering and Nanotechnology (IBN), Institute of Molecular and Cell Biology (IMCB) and Genome Institute of Singapore (GIS) have successfully developed a miniaturized device that can be used to detect the highly pathogenic avian flu (H5N1) virus.
The influenza A virus does not lie dormant during summer but migrates globally and mixes with other viral strains before returning to the Northern Hemisphere as a genetically different virus, according to biologists who say the finding settles a key debate on what the virus does during the summer off season when it is not infecting people.
In the first systematic, statistical analysis of its kind, infectious-disease-modeling experts at Fred Hutchinson Cancer Research Center confirm that the avian influenza A (H5N1) virus in 2006 spread between a small number of people within a family in Indonesia.
The World Health Organization has reinforced that Tamiflu (oseltamivir) is the primary recommended antiviral of choice in managing patients infected with H5N1 in updated guidance published on the WHO website today. Experts believe that a human influenza pandemic is imminent and could be triggered by the highly pathogenic H5N1 strain, which, as of Aug. 16 2007, has infected 321 humans, causing 194 deaths worldwide.