深圳市易瑞生物技术股份有限公司出名了
本帖最后由 老福 于 2020-3-27 11:01 编辑深圳市易瑞生物技术股份有限公司（Shenzhen Bioeasy Biotechnology）出名了，不过是恶名。
西班牙说他们从易瑞买的新冠快速测试盒阳性检出率只有30% (换句话说，false negative rate = 70%)，中国驻西班牙大使馆说易瑞没有获得出售此产品的执照，中国捐赠的医疗用品里没有易瑞的产品。捷克从中国购买的新冠快速测试盒也出了严重问题，但不知是不是从易瑞购买的。
报导见 https://www.businessinsider.com/coronavirus-spain-says-rapid-tests-sent-from-china-missing-cases-2020-3
有圈子里的坛友吗？这个公司在圈子里名声怎么样？
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The Spanish newspaper El País reported that microbiologists found that tests it bought from a Chinese company called Bioeasy could correctly identify virus cases only 30% of the time.
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The Chinese Embassy in Spain said on Twitter on Thursday that the medical supplies China was donating to other countries did not include Bioeasy products.
It said that the Chinese Ministry of Commerce gave Spain a list of manufacturers and that Bioeasy was not among them, adding that it had not been given a license from China's National Medical Products Administration to sell its products.
老福注：看到另外的消息，这种快速测试本来就对新冠病毒早期感染者不准，因为它是基于抗体，它的正确用途应该是2周隔离后确认是否感染。所以更大可能是西班牙人用错地方了。
https://www.praguemorning.cz/80-of-rapid-covid-19-tests-the-czech-republic-bought-from-china-are-wrong/
However, according to seznamzpravy.cz, doctors and hygienists were informed that this might happen. Indeed, the rapid tests that arrived from China a few days ago do not reliably detect the infection at an early stage.
According to a document of the National Institute of Public Health, rapid tests have only a “supporting role” in testing.
The institute explained that these tests cannot detect the virus in the first five to seven days after being infected as the person has yet to start producing coronavirus antibodies in the blood. The rapid tests are based on detecting these antibodies, though.
“The test is not a diagnostic test,” the National Institute of Public Health stated.
In other words, it is better to use these tests at the end of the 14- days quarantine period to confirm if the person suspected of having coronavirus is indeed infected. 胶体金法病毒量太高出假阴性，不产生抗体或抗体太少假阴性，发病初期只测IgG假阴性，末期只测IgM假阴性，总之不会用的都说不好使，这是个很考验使用者科学素质的检测方法。 我估计西班牙用的不对，这种抗原快速检测盒用来检测痊愈病人是否可出院应该可以，但用来检测疑似病人搞不好就要吃瘪
鼻咽拭子取样也是个技术活…
如果板鸭这么手潮…那他们漏报了多少患者哇 好像反转了，公司说西班牙用的不对。捷克政府也出来说，是因为操作不对造成的。
有可能真是这帮人没好好学怎么用。 病急乱投医，先解决有没有的问题，再说好用不好用 大黑蚊子 发表于 2020-3-27 16:24
我估计西班牙用的不对，这种抗原快速检测盒用来检测痊愈病人是否可出院应该可以，但用来检测疑似病人搞不好 ...
抗体检测只适用于大规模查漏（比方说机场需要快速检测等等）如果是确诊类的比方说痊愈患者假阴/阳性就得靠核酸检测。 Update: 易瑞说已获得欧洲（CE)认证， 但在国内确实没有，只供科研。已经与西班牙方面联系确保正确的方法使用，正式的测试（保证正确使用前提下）正在进行中。 红茶冰 发表于 2020-3-27 20:20
抗体检测只适用于大规模查漏（比方说机场需要快速检测等等）如果是确诊类的比方说痊愈患者假阴/阳性就得 ...
抗体检测一般都是发病后几天才能查出来，基本上量体温就能知道了
不是说西班牙报纸辟谣了{:200:} 刚刚白岩松采访驻西班牙代办，也是说可能使用方法不正确，但强调不在中国政府的采购目录。 常挨揍 发表于 2020-3-27 22:16
不是说西班牙报纸辟谣了
没看到西班牙的消息。捷克卫生部已出面说明捷克地方卫生部门使用方法不当造成检测错误率高。
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