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A new study by researchers at Queen Mary University of London, University of Oxford, Institute for Advanced Studies, Vienna, and the Medical University of Graz, has found that lateral flow tests detect Covid-19 with similar accuracy to laboratory-based PCR tests, providing they are used at the onset of infection and soon after symptoms start.
Lateral flow tests are cheaper and produce a result in just 30 minutes - much faster than the time it takes to receive a PCR test result, which can take 1-3 days. The finding could be pivotal to national strategies looking to tackle the next phase of the pandemic, especially as timely and rapid testing becomes even more important once the current restrictions lift in England.
Lateral flow tests 95% effective at detecting Covid at start of symptoms
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Lateral flow tests 95% effective at detecting Covid
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Sixty-one per cent of the inks, especially red hues, contained pigments that concerned the research team. The red pigment iron oxide was correlated to the presence of other metals, including cobalt, nickel, zinc, lead and arsenic, the study found.
Iron, aluminum, titanium and copper, mostly in blue or green inks, were the main metals detected in the samples, researchers found. But only a few samples had levels of metal impurities that exceeded safe limits.
The study found most samples did not adhere to industry standards set in Europe. Standards in North America are less strict, the researchers sais.
Lateral flow tests 95% effective if symptomatic
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