冠状病毒的封锁可能没有明显的好处. 自愿措施, 国际研究说

冠状病毒的封锁可能没有明显的好处. 自愿措施, 国际研究说

Mandatory stay-at-home orders and business closures may not be more effective at controlling the spread of the 新冠病毒 than less restrictive, 自愿措施, a new study found.

At the beginning of the pandemic, Sweden南韩 did not implement mandatory lockdowns in the form of stay-at-home orders and business closures, though many people still isolated and followed measures to mitigate the spread of the virus voluntarily.

Sweden relied onsocial distancing guidelines, discouraging of international and domestic travel, and a ban on large gatherings,” while South Korea relied onintensive investments in testing, contact tracing, and isolation of infected cases and close contacts.

The findings appeared in the European Journal of Clinical Investigation.

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Stanford University researchers compared the spread of COVID-19 in Sweden and South Korea to the spread in eight countries that did implement more restrictive mandatory lockdowns: 英国, 法国, 德国, 伊朗, Italy, 荷兰, Spain and the United States.

They found that nonpharmaceutical interventions were effective in nine out of 10 国家, but there wasno clear, significant beneficial effect of [more restrictive non-pharmaceutical interventions] on case growth in any country.

The researchers pointed out that while they foundno evidence of large anti-contagion effects from mandatory stay-at-home and business closure policies,” cross-country comparisons were difficult becausecountries may have different rules, cultures, and relationships between the government and citizenry.

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This does not mean that measures to mitigate the spread of COVID-19 are ineffective, just that more restrictive nonpharmaceutical interventions may not provide more benefits than less restrictive voluntary measures, according to these researchers.

While small benefits cannot be excluded, we do not find significant benefits on case growth of more restrictive [nonpharmaceutical interventions],” the study concluded. “Similar reductions in case growth may be achievable with less restrictive interventions.

Other studies have found that lockdowns do work.

单击此处以完成冠状动脉覆盖

例如, researchers from Rice University found in a study last month thatstates that are more open are susceptible to higher COVID-19 death rates.

The increasingly strong relationship between high levels of openness and high [daily deaths per million] suggests that lockdowns have been effective in both reducing [daily deaths per million] in highly infected states and in preventing new spikes in deaths.

Another study by researchers at Columbia University found thatschool closures and voluntary or mandated stay-at-home measuresreduced the spread of COVID-19 in New York City last spring by 70%.

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