How many kinds of viruses exits,and how manyn of there are harmful to human?

1.TEDMED :How many kinds of viruses exits ,and how many of them are harmful to humans?

We can see many virus in the world. Of the millions of types of viruses, only few hundred are known to harm humans. New viruses emerge all the time most are harmless . They are Great colara epidemic, Chikungunya epidemic ,Spanish flu, "SARS" corona epidemic etc. Now local situation is very dangerous. Now we can talk about various virus and how is effected for humans "SARS" corona epidemic The "SARS" corona virus was first detected in the Asian region in 2003 it spread to countries in the US and Asia. However, most of these were impacted by the Asian region. More than 8,000 people were infected with the SARS corona epidemic and more than 800 people who died. That is one in 10 people who died of the SARS epidemic died. It is also very dangerous for people over the age of 65, with more than half of those diagnosed with the diseases in that age group. "Chikungunya" pandemic Bites of mosquitos with the Chikungunya virus can cause the Chikungunya virus was first detected in 1952 in southern Tanzania after the discovery of the virus again in 2013 in the Caribbean. Since then, the Chikungunya pandemic has infected 1.3 million people across the continent, resulting in more than 190 deaths.

"Ebola" epidemic Ebola is also a viral ,outbreak ,the first of which was reported in the Central African region during 2014-2016. Ebola was first reported in Guinea, African in 2013, before it become an epidemic. The epidemic then spread to neighbouring Liberia and sierra Leone. The Ebola virus was first identified in 1976 and the Central African region was severely affected by the Ebola epidemic in 2014-2016 by 2016 more than 11,000 people had died in the West African, given frim the Ebola outbreak. Now we can understand many viruses and harmful Viruses .So we should maintain our contacts and social distance .Therefore we should protect ourselves and our nations. K. D. P. M. Kiriwaththuduwa MAPT/19/B1/19