How Many Flu Viruses Are There In The World

Human influenza a and b viruses cause seasonal epidemics almost every winter in the united states. More than 100 types of cold viruses are known and new strains of flu evolve every few years. A b c and d.

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The 12 Deadliest Viruses On Earth Live Science

A b c and d.

How many flu viruses are there in the world. Since both diseases are viral antibiotics cannot conquer cold or flu. Some viruses such as influenza and ebola do sicken people but many infectonly bacteria. If there can be so many viruses in a single. There are four types of influenza viruses.

It took a decade. The most deadly flu pandemic sometimes called the spanish flu began in 1918 and sickened up to 40 of the world s population killing an estimated 50 million people. Bird flu ebola and zika there seems to be news on a new dangerous virus almost every day. But so far experts are saying that zika itself isn.

Sign up for our free cold and. Around 100 years ago the world experienced the spanish flu pandemic and it took another 39 years for a novel influenza virus to emerge. The common flu causes up to 5 million cases of severe illness worldwide and kills up to 650 000 people every year according to the world health organization in the us. These pages includes information about the estimated burden of influenza from past seasons including tables of the estimated influenza disease burden and 95 credible interval cr i by age group.

Why are there so many flu strains today. The total number of flu viruses in your body can rise to 100 trillion within a few days. Science top 10 most dangerous viruses in the world. Though it s unknown exactly how many types of viruses there are approximately 320 000 types of viruses.

Information on how these estimates are calculated can be found on cdc s web page how cdc estimates the burden of seasonal influenza in the u s. There are four types of influenza viruses. Influenza a viruses are the only influenza viruses known to cause flu pandemics i e global epidemics of flu disease. Human influenza a and b viruses cause seasonal epidemics of disease known as the flu season almost every winter in the united states.

That s over 10 000 times more viruses than people on earth. Influenza c infections generally cause. The centers for disease control and prevention estimates that so far this season there have been at least 15 million flu illnesses for the 2019 2020 season 140 000 hospitalizations and 8 200 deaths in the u s.