R0 value and its importance

R0 value and its importance

The R0 value indicates how contagious an infectious disease is and hence it is an important marker to study the progression of a disease. Using the R0 value, the transmission rate of a disease or its decline can be calculated.

Countries have been trying to find out the R0 value of COVID-19 as a metric to find out the transmission rate of the virus.

Also read | India’s disease surveillance system needs a reboot

Preliminary studies estimated a global R0 value for COVID-19 to be between 2 and 3. This means each infected person has spread the virus to an average of 2 to 3 people. But some recent studies suggest COVID-19 has an even higher R0 value.

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