COVID-19: India's R-value drops to 2.2 between 7 and 13 January, shows IIT Madras analysis

The R-value marks the number of people an infected person can spread the disease to, a pandemic is considered to end if this value goes below 1

Press Trust of India January 16, 2022 19:11:31 IST
COVID-19: India's R-value drops to 2.2 between 7 and 13 January, shows IIT Madras analysis

File pic of Covid tests being conducted (AP Photo/ Dar Yasin, File)

New Delhi: India's 'R-value', which indicates how rapidly COVID-19 is spreading, was recorded at 2.2 between 7 and 13 January, a drop from the previous two weeks, according to a preliminary analysis by IIT Madras.

The R-value of Mumbai was 1.3, Delhi 2.5, Chennai 2.4 and Kolkata 1.6, according to the analysis by IIT Madras' Department of Mathematics and Centre of Excellence for Computational Mathematics and Data Science headed by Prof Neelesh S Upadhye and Prof S Sundar.

It was close to 2.9 nationally from 25 December to 31 December while it was 4 between 1 and 6 January.

The R-value marks the number of people an infected person can spread the disease to. A pandemic is considered to end if this value goes below 1.

Dr Jayant Jha, an assistant professor in the department of mathematics at IIT Madras, said the R-value depends on transmissibility probability, contact rate and expected time interval in which infection can happen.

India added 2,71,202 new coronavirus infections to the Covid case tally that reached 3,71,22,164 on Sunday, including 7,743 cases of the Omicron variant.

The country saw 1,702 new cases of Omicron variant, the highest in a day so far, and an increase of 28.17 percent since Saturday.

Experts said it is not possible to undertake genome sequencing of each and every sample, but stressed that this wave is largely being driven by Omicron.

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