How deadly is Covid-19? Things you should know about coronavirus risks

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Seasonal flu infects tens of millions of people each year, but kills only 0.1 percent, but Sars-Cov-2, the virus behind Covid-19 has now killed at least 22,000 people in just three and a half months.

Almost 4 percent of people died of the total diagnosed population. But the size of the infection and the testing policy may not reveal the true death threat.

India Today's Data Intelligence Unit (IUD) analyzed data from nine countries, including India, to track how the speed of testing determines the death rate. Most countries have reported their test data as of March 20.

The data shows that countries with the highest test frequency have a lower mortality rate, and countries with less tests have a higher mortality rate.

For example, India carried out 11 tests per million inhabitants and obtained a mortality rate of 2.09 percent.

South Korea conducted more than 6,000 tests per million population and maintained a death rate of 1.16 percent as of March 20.

However, Italy conducted extensive testing and reported a higher case fatality rate. With around 3,500 tests, Italy has reported a case fatality rate of 8.5% in crude cases, higher than that observed in other countries.

Experts have explained the demographic profile of Italy as one of the main reasons.

"The demographic characteristics of the Italian population differ from other countries. In 2019, approximately 23 percent of the Italian population was 65 years or older. Covid-19 is more lethal in elderly patients, so the distribution of the advanced age in Italy may explain, in part, the higher case fatality rate in Italy compared to that of other countries, "explained in a recent investigation Graziano Onder and his team of medical specialists from the Department of Endocrine-Metabolic Cardiovascular Diseases and Aging, Istituto Superiore di Sanita, Rome. Note.

The case fatality rate (CFR) also known as the death rate, which is calculated as the number of deaths divided by the number of total cases. Experts believe that death rates are not accurate at this stage of an outbreak because a limited or excessive testing policy may not cover minor cases.

However, the crude and initial mortality rate suggests that Covid-19 is not as deadly as Sars and Mers.

The coronavirus originated late last year in the city of Wuhan in China. As of March 26, Covid-19 has reached 199 countries with more than five lakh cases.

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Raj Gaur

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