Virus Flu Pandemic

Many questions about its origins its unusual epidemiologic features and the basis of its pathogenicity remain unanswered. It infected about 500 million people and killed at.

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Although there is not universal consensus regarding where the virus originated it spread worldwide during 1918 1919.

Virus flu pandemic. It was caused by an h1n1 virus with genes of avian origin. The major and abrupt. An unthinkable 50 to 100 million people worldwide died from the 1918 1919 flu pandemic commonly known as the spanish flu it was the deadliest global pandemic since the black death and rare.

A new strain of flu that has the potential to become a pandemic has been identified in china by scientists. There have been five in the last 140 years with the 1918 flu pandemic being the most severe. This change can result in what the body sees as a completely new virus.

That pandemic was the deadliest in the 20th century. The public health implications of the pandemic therefore remain in doubt even as we now grapple with the feared emergence of a. Influenza pandemic of 1918 19 also called spanish influenza pandemic or spanish flu the most severe influenza outbreak of the 20th century and in terms of total numbers of deaths among the most devastating pandemics in human history.

In the united states it was first identified in military personnel in spring 1918. The spanish influenza pandemic of 1918 1919 which caused 50 million deaths worldwide remains an ominous warning to public health. It emerged recently and is carried by pigs but can infect humans they say.

Take for example the flu pandemic of 1918 1919. The 1957 pandemic flu virus or influenza a subtype h2n2 is thought to have given rise to h3n2 through a process called antigenic shift in which the hemagglutinin h antigen a substance that stimulates an immune response on the outer surface of the virus underwent genetic mutation to produce the new h3 antigen. This pandemic is estimated to have been responsible for the deaths of 50 100 million people.

Influenza pandemic of 1918 19. After all other viral pandemics have. A pandemic can occur when a type of influenza virus known as the influenza a virus mutates suddenly.

The 1918 influenza pandemic was the most severe pandemic in recent history. An influenza pandemic is an epidemic of an influenza virus that spreads across a large region either multiple continents or worldwide and infects a large proportion of the population.

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