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The Developing Threat of New Pandemic Influenza Strains
In March 1918, a virulent viral strain from the influenza A genus (Orthomyxoviridae family), suddenly appeared in a rural area of Kansas By late September this strain had transformed itself to cause a rampant pulmonary disease with severe overwhelming lung damage Many victims turned purple from respiratory failure and died within a day
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THE NATIONAL STRATEGY FOR PANDEMIC INFLUENZA
< lass="news_dt">01/11/2005 · From time to time, changes in the influenza virus result in a new strain to which people have never been exposed These new strains have the potential to sweep the globe, causing millions of illnesses, in what is called a pandemic A new strain of influenza virus has been found in birds in Asia, and has shown that it can infect humans If this virus undergoes further change, it could very well result in the next human
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UPDATE ON INFLUENZA SURVEILLANCE, DIAGNOSIS AND
of influenza that infect only birds or pigs are transmitted directly to humans or via genetic reassortment between human and animal influenza viruses A pandemic takes place when human-to-human transmission of these novel viruses occurs and leads to disease in a large and immunologically susceptible human population Currently influenza AH1N1, AH3N2 and B are co-circulating in the
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PERSPECTIVE Predictability and Preparedness in Influenza
pandemic influenza are the neuraminidase-inhibitor antiviral drugs, oseltamivir and zana-mivir The World Health Organization (WHO) has a stockpile of oseltamivir to use in early cases of human-to-human transmissions of a potential pandemic virus to attempt to slow the outbreak and create more time for vaccine pro-duction and other preparations However, theCited by : 104
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Volume 14, Issue 7 - 19 February 2009 - Eurosurveillance
novel virus, even a pandemic strain either in the pig “mixing vessel” or in a human dually infected with a human and pig strain In the United States there have recently appeared triple reassortant swine influenza viruses with avian, human and swine genes and these have then transmitted to humans [19,20] Fortunately, these and
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Seasonal Influenza Vaccination – Fact Sheet
Influenza spreads predominantly via the droplet and contact routes when people cough and sneeze and by indirect spread from respiratory secretions on hands, tissues, etc The incubation time for influenza ranges from 1 to 5 days, but the average is 2 days In most cases, virus is found in specimens from nose and throat from 1 day
22 mar 2011 · routes of transmission of influenza virus to humans, as of 2010 Similar results were found when a 2009 pandemic H1N1 strain was A number of studies have attempted to assess virus contamination of fomites numbers of secondary cases from a source case, was introduced by Lloyd-Smith et al (62);
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the emergence of the different virus strains and predict possible new variants Dragnet on a train is enough to make us H1N1 has presented humanity with the first an agent of disease that is also transmit- In an attempt to find answers
W Biology Medicine
15 How and where do influenza viruses enter the human body? 37 16 How does include certain strains of the bacterium Escherichia coli — better known as E coli ciently transmit from human to human and become a human pandemic virus try, LPAI viruses can develop mutations in their HA surface glycoprotein, by
Influenza QandA Book
Transmission of influenza during different stages of infection in humans fitness for replication of influenza virus strains in the human respiratory tract to help Contact tracing and quarantine of close contacts have been used in an effort to
research agenda influenza stream limiting spread
Avian influenza viruses (AIV) potentially transmit to swine as shown by experiments, strain through genetic reassortment between avian and human viruses1 Unfortunately, the NA gene sequencing attempts repeatedly failed even with
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Influenza viruses in human populations strain As the human population may not have encountered the virus before, it has little or no been able to transmit between humans as well as the people became infected, effort was centred upon
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enza numerous attempts were made to transmit the disease to human volun- Virus.-The PR8 strain influenza A virus
Swine Influenza A (H1N1) but this strain has acquired the ability to transmit from pigs to humans
8 août 2006 been documented rarely but H5N1 viruses have not yet acquired the ability to transmit efficiently among humans
22 mars 2011 routes of transmission of influenza virus to humans as of 2010. ... and may transmit infection on being respired into the respiratory tract ...
5 mai 2011 Human Influenza United Nations System Influenza Coordination; Ms Carmen Amela Heras
specify steps to minimize the risk of introducing influenza virus strains it is very unlikely that a reassortant virus would transmit to human contacts.
1 mai 2015 There are many AI virus strains which are usually classified into two categories ... consumption could transmit the AI virus to humans.
14 févr. 2012 that all virus strains that replicate in and transmit between ferrets necessarily do so in humans (13 14). Ferrets are also more.
25 mars 2014 transmit between humans and initiate a pandemic. ... a wild-type avian H9N2 virus was not airborne transmissible in ... In attempts to.
The Production of Experimental Influenza in Mice by Inhalation of