CBI to review performance of investigators each month

A person with Covid-19 should be considered a case of

re-infection

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if they had a previous bout at least 102 days prior to their latest

test

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result, and had at least one negative

test

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in the period between, the Indian Council of Medical Research (ICMR) suggested after studying the case of 1,300 people, 4.5% of whom appeared to have caught the virus twice. Published online by the

Cambirdge

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Cambridge

Epidemiology and Infection journal as an accepted manuscript, the

study

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is based on telephone interviews with people selected from ICMR’s laboratory database of at least 80 million individuals tested

during

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from

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January 22 to October 7, 2020. The government has been working on a definition for ‘

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re-infection’

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re-infection

of cases since October. The 4.5% who were found infected were people infected in the

first

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wave. “

This

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is an averaged out figure over a period of about eight months— January to October

,

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apply

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2020—, which will vary with behaviour and intensity of epidemic,” said Dr Balram Bhargava, director general, ICMR. According to the

study

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, the authors said: “Taking available evidence into consideration,

re-infection

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with Sars-CoV-2 in our

study

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was defined as any individual who tested positive for SARS-CoV-2 on two separate occasions by either molecular tests or rapid antigen

test

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at an interval of at least 102 days with one negative molecular

test

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in between. In

this

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archive based

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archive-based

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, telephonic survey, 58 out of 1,300 individuals (4.5%) fulfilled the

above mentioned

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above-mentioned

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definition”. The

study

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, the authors added, was meant to “develop an epidemiological case definition of possible Sars-CoV-2

re-infection

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and assess its magnitude in India... While Sars-CoV-2

re-infection

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is still a rare phenomenon, there is a need for

epidemiological

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an epidemiological

the epidemiological

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definition of

re-infection

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for establishing surveillance systems and

this

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study

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contributes to

such

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goal..,” the paper said.