There has been a lot of discussion since the coronavirus epidemic began R effective, Indicator as a reflection of the rate of spread of SARS-Cov-2, the virus that causes Kovid-19 disease. But what exactly is it?
In medical parlance, we say it Effective R0 or R. Basic reproduction rate of the virus. Clear: “This is the number of people transmitted by an infected person“Dr. William Berreby, gastroenterologist and hepatologist and former intern at Paris Hospital.
Thus the R0 index is not unique to SARS-Cov-2 coronavirus: it can be measured for any viral pandemic. “At the height of the coronavirus epidemic, at the end of March 2020, R0 3 This means that each infected person can spread the virus to about 3 other people, Says Dr. Berreby. For comparison, of R0 Measles 16 and Gastroenteritis 17: These are viruses that circulate more easily than SARS-Cov-2 in the population.“
The effective R (R0) is less than 1 in France
Some benchmarks. When an infection drops to R0 0, the virus no longer circulates and the infection is extinguished: on the contrary, the longer it is, the greater the infection. “When R0 exceeds 1, the infection is expected to be active: at that time, it is compatible with segments (…)
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