Readers ask: Why Does The Flu Start In Asia?

When does flu season start in Asia?

The primary peak was estimated as between May and October for most of these countries, but was not synchronized (Figure 1(d)). For the Western, Central and Eastern transmission zones, influenza infections were largely confined to the winter season, with peaks between December and March.

Where does most of the flu originate from?

Note that this study says that flu strains originate in east and southeast Asia and emerge to cause disease in other parts of the world, in a highly predictable pattern.

How does seasonal flu start?

The exact mechanism behind the seasonal nature of influenza outbreaks is unknown. Some proposed explanations are: People are indoors more often during the winter, they are in close contact more often, and this promotes transmission from person to person.

What animal did the flu come from?

Answer: Influenza is a virus that’s spread from person to person. It originates, actually, among birds and other animals such as pigs, and new viral strains of influenza come to this country and to Europe from Southeast Asia.

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What classifies a pandemic?

Pandemic: An epidemic occurring worldwide, or over a very wide area, crossing international boundaries and usually affecting a large number of people. COVID-19 was declared a pandemic in March 2020 by the World Health Organization.

Does the flu still exist?

The 2019-20 flu season was cut short by the pandemic, and cases have not risen since. There have been fewer influenza cases in the United States this flu season than in any on record. About 2,000 cases have been recorded since late September, according to data from the Centers for Disease Control and Prevention.

How many people have died from the flu in the last 10 years?

CDC estimates that flu has resulted in 9 million – 41 million illnesses, 140,000 – 710,000 hospitalizations and 12,000 – 52,000 deaths annually between 2010 and 2020.

How many people have died from the flu in the world?

Flu: The World Health Organization estimates that 290,000 to 650,000 people die of flu-related causes every year worldwide.

What is the average annual death toll from the flu in the US?

The CDC estimates that an average of 36,000 people died of the flu each year over the past decade. The worst recent flu season was 2017-2018, when 61,000 people died from the flu.

Why is there a flu season and not year round?

Flu season in the United States runs from mid-fall to late spring, because the flu virus is more active and spreads faster when temperatures are chilly. The exact months change a little each year. The Centers For Disease Control and Prevention (CDC) monitors flu cases every year.

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How many flu strains are there in 2020?

There are four main strains of influenza virus: A, B, C, and D.

What happens to flu in summer?

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