Stay at home, it’s the best way to stop COVID 19 spread

06:46 AM Jul 05, 2020 |
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New York: A new study has found that people who stayed home even before lockdown and sheltering-at-home orders were implemented may have helped slow the spread of the novel coronavirus back in March and April. Individual decisions to reduce movement likely helped slow the spread of Covid-19 in the US, according to a new study published in The Lancet Infectious Diseases journal. The residents in 25 most affected US counties began to limit their public movements six to 29 days before states implemented stay-athome orders. The decline in the number of daily trips people made as tracked by mobile phone data helped slow the spread of the virus.

“Our results strongly support the conclusion that social distancing played a crucial role in the reduction of case growth rates in multiple US counties during March and April,” said study lead author Lauren Gardner from Johns Hopkins University. Determining the effectiveness of social distancing is difficult because counties and states implemented different policies at different times so to establish a reliable indicator of social distancing, the researchers used real-world mobile phone movement data. Their first step was to establish a baseline of normal movement between January 8-31. They then examined changes through April 16 in the 25 US counties with the highest numbers of confirmed Covid-19 cases.

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From January 24 to April 17, people made far fewer daily trips than they did during the baseline period. The findings showed that individuals began to reduce movement in early March, indicating that social distancing began well before the first state, California, imposed a stay-athome directive on March 21. In New York City, for example, residents had limited movement to 35 per cent of the baseline, the most significant reduction in movement among the 25 jurisdictions. Social distancing will remain one of the most important ways to control the spread of infections until a vaccine is available, the researchers noted.

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