Essay on the history of bird flu: bird flu or avian influenza is a viral disease of birds — it spreads in different countries by ignoring the different laws through the migratory birds it is a highly contagious poultry disease, causes high mortality in poultry birds. Bird flu (avian flu or avian influenza) refers to strains of influenza that primarily affect wild and influenza viruses mutate easily and often these mutations can arise spontaneously in a single serious pandemic influenza occurs when a relatively new strain of the influenza virus arises that is. The 1918 pandemic was known as the spanish flu and was influenza strain a(h1n1) and it caused the highest known influenza death rate known, 500,000 americans and 20 million people worldwide the 1957 pandemic was known as the asian flu and was influenza strain a(h2n2) and caused 70,000 us deaths. Ongoing pandemic concerns include the h5n1 avian flu, hiv/aids, antibiotic-resistant superbugs, and sars pandemics can create sudden and intense demands on health systems, and a response network to prepare for such events has been developed by the world health organization en71 virus.
Big pharma company accidentally contaminates vaccines with avian flu virus many of you may already be aware of this late-breaking story it is being widely reported around the world, but the us mmd (media of mass deception) appears to have a blackout placed on it. Avian influenza essays avian influenza is a contagious virus that usually infects all species of birds, but it has recently been tracked to infect humans as well, putting many people at fear of an influenza pandemic avian flu: influenza a virus essay influenza caused by viruses adapted to birds. The h5n1 strain is a fast-mutating, highly pathogenic avian influenza virus (hpai) found in multiple bird species it is both epizootic (an epidemic in non-humans) and panzootic (a disease affecting animals of many species especially over a wide area.
The h7n9 avian flu virus has infected 1,600 people and killed more than 600 in china since october 2016 van-tam told the telegraph that h7n9 has a higher rate of mortality than any other pandemic-causing virus a woman walks past chickens for sale at a market in dakar, senegal, on. The most prevalent avian influenza virus in humans is the highly pathogenic avian influenza a (h5n1) virus, which has caused over 380 confirmed cases in 15 countries (rabinowitz, 2010) majority of cases have been transmitted via bird-to-human, with rare cases of human-to-human transmission. Flu viruses mutate every year, and it's common to see several strains of flu during the same season a similar strain called h1n1 was responsible for the 1918 flu pandemic, and the 2009 swine flu outbreak h3n2 is historically the bad actor among influenzas, he says it's also associated with. Recently, the virus responsible for the 1918 influenza pandemic was re-synthesized by a group at the center for disease control and prevention (cdc) the virus was characterized in mice and the genomic sequence was aligned with other known influenza viruses, yielding very interesting results.
When you get the flu, viruses turn your cells into tiny factories that help spread the disease in this animation, npr's robert krulwich and medical animator david bolinsky explain how a flu virus can trick a single cell into making a million more viruses. But it's flu season, and influenza science has a way of causing a stir this time of year epidemiologists have long debated the pandemic potential of h5n1, aka avian bird flu on one hand, the virus spreads too inefficiently between humans to seem like much of a threat: it has caused less than 600. The virus infects peoples' lungs, but too deeply to be coughed or sneezed at another potential victim to do this, the bird flu viruses must undergo further genetic alterations and borrow cell surface receptors from no one knows whether the virus will evolve into a pandemic strain, but flu.
Avian flu the next pandemic thai workers remove chickens to be destroyed at a farm in the central province of suphanburi, thailand research suggests that the trigger for the 1918 spanish flu pandemic was originally an avian influenza virus currently, human-to-human transmission is not a. Influenza virus net is the web resource for anyone interested in flu, influenza viruses and pandemic flu outbreaks although the virus seems to have caused epidemics throughout human history, historical data on influenza are difficult to interpret, because the symptoms can be similar to those of. Read this essay on bird flu of h5n1 virus threatens world pandemic come browse our large digital warehouse of free sample essays get the knowledge you need in order to pass your classes and more only at termpaperwarehousecom. Some novel flu a viruses are believed to pose a greater pandemic threat than others and are more concerning to public health officials because they have three subtypes of avian influenza a viruses are known to infect people (h5, h7 and h9 viruses) highly pathogenic asian avian influenza a h5n1.
Find out information about avian flu virus see influenza influenza or flu, acute, highly contagious disease caused by a rna virus experts believe that the so-called 1918 spanish flu pandemic, which may have killed as many as 50 million people, began when an avian flu virus jumped to people. The influenza virus causes the flu (which is the short name for influenza) (click flu to read more about the flu) the influenza virus is round, but it can also be elongated or irregularly shaped inside the influenza virus are eight segments of single-strand rna (ribonucleic acid) containing the genetic. Viruses are small infectious agents that replicate only within the cells of living plants and animals viruses are approximately ten times smaller than bacteria and consist of a nucleic acid what is bird flu and swine flu bird flu or avian influenza is an infection of birds by the type a influenza virus. The spanish flu virus was less dangerous than the avian flu virus killing people today the pandemic was really mysterious: the virus speedily traveled about the world, the clinical course was fulminant when people died of it within 1-2 days and it had an incredibly high death toll.
The classical swine flu virus (an influenza type a h1n1 virus) was first isolated from a pig in 1930 both result in new virus strains like antigens of many other viruses, the surface proteins of flu in the end this avian virus infected 18 people and killed six, but luckily it did not lead to the birth of a. The influenza virus is constantly evolving and while a future pandemic is a certainty, when and where it will start, and which virus strain it will be, are all unknown as such, surveillance, preparedness and response must be global, collective efforts. To date, the avian flu virus has not acquired to ability to spread easily from person to person - a necessary step in order for a virus to cause a pandemic in the spring of 2009, a different influenza virus - one that had never been seen before - suddenly appeared the novel virus, commonly called.