COVID-19: Rapid coronavirus testing done wrong risks dangerous consequences
Like masks and lockdowns, lateral flow tests have become a point of contention during the pandemic. A debate has raged about how and when they should be used. At the same time, as more evidence has been put forward to illustrate their strengths and weaknesses, an outline of a scientific consensus has gradually emerged. Lateral flow tests are small, portable and give fast results, but their speed comes at some cost in accuracy. Exactly how much less accurate they are than PCR tests is a matter of some debate, and the final results depend on who is being tested and who is doing the testing. The short version of the accuracy debate goes like this: they should be able to detect the most infectious people, but they will give some … 阅读全文