Influenza pandemic
hideAn influenza pandemic is an epidemic of an influenza virus that spreads on a worldwide scale and infects a large proportion of the human population. In contrast to the regular seasonal epidemics of influenza, these pandemics occur irregularly, with the 1918 Spanish flu the most serious pandemic in recent history. Pandemics can cause high levels of mortality, with the Spanish influenza estimated as being responsible for the deaths of over 50 million people. There have been about three influenza pandemics in each century for the last 300 years. The most recent ones were the Asian Flu in 1957 and the Hong Kong Flu in 1968.
Influenza pandemics occur when a new strain of the influenza virus is transmitted to humans from another animal species. Species that are thought to be important in the emergence of new human strains are pigs, chickens and ducks. These novel strains are unaffected by any immunity people may have to older strains of human influenza and can therefore spread extremely rapidly and infect very large numbers of people. Influenza A viruses can occasionally be transmitted from wild birds to other species causing outbreaks in domestic poultry and may give rise to human influenza pandemics.
The World Health Organization (WHO) warns[when?] that there is a substantial risk of an influenza pandemic within the next few years[when?]. One of the strongest candidates is a highly pathogenic variation of the H5N1 subtype of Influenza A virus. As of 2006, prepandemic influenza vaccines are being developed against the most likely suspects which include H5N1, H7N1, and H9N2. Certain scholars and senior policy advisors argue that pandemic influenza represents a substantive threat to the international economy, to each nation's national security, and a challenge to international governance.
On 11 June 2009, a new strain of H1N1 influenza was declared to be a global pandemic (Stage 6) by the World Health Organization after evidence of spreading in the southern hemisphere.
For more information about Influenza pandemic, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
News tagged with pandemic flu
Six bad reactions to swine flu vaccine in Canada: official (Update)
Medicine & Health / Medications
Nov 24, 2009 |
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Six severe allergic reactions to swine flu vaccinations have been observed in Canada, health authorities said Tuesday, adding that all of the individuals are feeling better.
Researcher produces, ships only H1N1 vaccine available for swine
Nov 23, 2009 |
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The only swine vaccine available for the H1N1 virus has been sent to vaccinate a swine herd infected with the virus. The vaccination marks the first time vaccine has been sent to a swine herd diagnosed with the pandemic flu.
Vaccines on horizon for AIDS, Alzheimer's, herpes
Medicine & Health / Medications
Nov 17, 2009 |
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(AP) -- Malaria. Tuberculosis. Alzheimer's disease. AIDS. Pandemic flu. Genital herpes. Urinary tract infections. Grass allergies. Traveler's diarrhea. You name it, the pharmaceutical industry is working ...
CDC now says 4,000 swine flu deaths in US
Nov 11, 2009 |
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(AP) -- Federal health officials now say that 4,000 or more Americans likely have died from swine flu - about four times the estimate they've been using.
In Europe, most swine flu shots by invitation only
Nov 06, 2009 |
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(AP) -- In Britain, there are no long lines of people seeking swine flu vaccine. Doctor's offices aren't swamped with desperate calls. And there are no cries of injustice that the vaccine is going to wealthy ...
Pandemic flu vaccine campaigns may be undermined by coincidental medical events
Oct 30, 2009 |
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The effectiveness of pandemic flu vaccination campaigns - like that now underway for H1N1 - could be undermined by the public incorrectly associating coincidental and unrelated health events with the vaccines.
Medical ethics experts identify, address key issues in H1N1 pandemic
Sep 23, 2009 |
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The anticipated onset of a second wave of the H1N1 influenza pandemic could present a host of thorny medical ethics issues best considered well in advance, according to the University of Toronto Joint Centre for Bioethics, ...
Man-made crises 'outrunning our ability to deal with them,' scientists warn
Sep 11, 2009 |
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The world faces a compounding series of crises driven by human activity, which existing governments and institutions are increasingly powerless to cope with, a group of eminent environmental scientists and economists has ...
Study: Vaccination of 70 percent of US population could control swine flu pandemic
Sep 10, 2009 |
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An aggressive vaccination program that first targets children and ultimately reaches 70 percent of the U.S. population would mitigate pandemic influenza H1N1 that is expected this fall, according to computer modeling and ...
Was the public health response to swine flu alarmist?
Sep 03, 2009 |
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The public health measures taken in response to swine flu may be seen as alarmist, overly restrictive, or even unjustified, says a US expert in a paper published on BMJ.com today.
H1N1 pandemic virus does not mutate into 'superbug' in new lab study
Sep 01, 2009 |
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(PhysOrg.com) -- A laboratory study by University of Maryland researchers suggests that some of the worst fears about a virulent H1N1 pandemic flu season may not be realized this year, but does demonstrate ...
Swine flu: 10 things you need to know
Sep 01, 2009 |
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(AP) -- Since it first emerged in April, the global swine flu epidemic has sickened more than 1 million Americans and killed about 500. It's also spread around the world, infecting tens of thousands and killing nearly 2,000.
Britain's first swine-flu trials under way
Aug 11, 2009 |
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Britain's first swine flu vaccine trials, led by the University of Leicester and University Hospitals of Leicester NHS Trust, are taking place at the Leicester Royal Infirmary.
Researchers study virulence of pandemic H1N1 virus
Jul 30, 2009 |
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Laboratory studies at Kansas State University and the work of a K-State researcher are making headway in the effort to control the pandemic H1N1 virus.
1 in 6 public health workers unlikely to respond in pandemic flu emergency
Jul 24, 2009 |
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Approximately 1 in 6 public health workers said they would not report to work during a pandemic flu emergency regardless of its severity, according to a survey led by researchers at the Johns Hopkins Bloomberg School of Public ...
