Question

Lockdown was necessary to curb the spread of covid 19.Explain in brief ​

Answer 1

Answer:

Viruses have varying abilities to infect people. For COVID-19, each person with the virus can go on to infect around 2.5 people. If each of those people go about their day as normal, and infect another 2.5 people, within a month, 406 people would be infected just from that first infection.

COVID-19 is more infectious than other coronaviruses such as SARS or MERS-CoV. The “case fatality rate” (CFR), or risk of dying from the new coronavirus, is about 4.4%, (although this risk varies by geography, and also can change over the course of a pandemic) is also less deadly than SARS (10%) or MERS-CoV (34%). So, if COVID-19 is less deadly than previous epidemic threats, why has it spread so far and wide that it has brought the world to a standstill?

The answer seems to be precisely because the new coronavirus is less deadly – thousands of people with either no symptoms or very mild symptoms have been spreading the virus unaware that they were even infected. This means that before health experts were aware of the problem and started to recommend control measures, the virus had already spread to multiple countries

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Answer 2

Viruses have varying abilities to infect people. For COVID-19, each person with the virus can go on to infect around 2.5 people. If each of those people go about their day as normal, and infect another 2.5 people, within a month, 406 people would be infected just from that first infection.

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