1. 這篇文章重點在說明為何美國做了比其他國家更多的篩檢，卻不能被認為已經有效控制疫情． The U.S. has conducted more COVID-19 tests than any other country. However, there is no expert consensus on a recommended target for the raw number of tests or even the rate of tests per capita – and the graph above demonstrates why using these statistics alone can be misleading.
2. 因為，政府如果要辨明新案例以及有效率地回應大規模流行，就應該以感染的規模來規劃檢測配套，而非以人口規模． In order for governments to identify new cases and effectively respond to the pandemic through tracing and treatment, testing programs should be scaled to the size of their epidemic, not the size of the population.
3. 一個國家如果測得陽性反應的比率愈高，表示政府對染病者的接觸史及網絡並沒有足夠廣泛地掌握． A high rate of positive tests indicates a government is only testing the sickest patients who seek out medical attention and is not casting a wide enough net.
4. 世界衛生組織建議，各國政府至少要連續14天，測得陽性反應的比率低於5%，才可以鬆綁防疫措施． The WHO has issued guidance stating that governments should see positivity rates below 5% for at least 14 days before relaxing social distancing measures.
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The U.S. has conducted more COVID-19 tests than any other country. However, there is no expert consensus on a recommended target for the raw number of tests or even the rate of tests per capita – and the graph above demonstrates why using these statistics alone can be misleading.
In order for governments to identify new cases and effectively respond to the pandemic through tracing and treatment, testing programs should be scaled to the size of their epidemic, not the size of the population.
A high rate of positive tests indicates a government is only testing the sickest patients who seek out medical attention and is not casting a wide enough net.
The WHO has issued guidance stating that governments should see positivity rates below 5% for at least 14 days before relaxing social distancing measures.
平均每日測得陽性反應率為0.43%
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