 |
What is a COVID-19 false negative? It means that the result of a certain test should actually be positive, but the result is negative due to reasons such as operation, equipment, personal physical characteristics, etc. Positive results were obtained after repeated negative tests, throat swab samples were negative for multiple tests but finally positive results were detected in respiratory lavage … |
 |
Promoting an efficient vaccine strategy will be the top priority in the next phase of the fight against the COVID-19 pandemic, renowned Shanghai doctor Zhang Wenhong wrote on his Sina Weibo account on Monday. “There is a certain proportion of cases whom despite receiving two doses of the vaccine developed severe conditions that require oxygen supplementation. But the incidence of … |
 |
COVID-19 is a respiratory disease that can cause severe illness, especially in people with preexisting health conditions like diabetes, obesity, or high blood pressure. Types of COVID-19 tests Two types of tests are commonly used to identify a current infection of SARS-CoV-2, the coronavirus that causes COVID-19. The first type is molecular test. Molecular tests include nucleic acid amplification tests (NAAT) such as … |
 |
Photo of Fudan University’s Handan campus in Shanghai, Nov 14, 2018. [Photo/IC] Researchers from Fudan University in Shanghai have devised a method that offers detection of novel coronavirus nucleic acids in less than four minutes, much faster than the current method used domestically. The research team said the new approach is ultrasensitive and uses small, portable equipment. In the polymerase … |
 |
COVID-19 is a variant of the coronavirus that can cause pneumonia in humans. It is an acute respiratory infectious disease, highly contagious, and most people are susceptible. It is easily replicated in the upper respiratory tract of humans. Under normal circumstances, the new crown nucleic acid can be quickly detected within 96 hours after infection. Testers can find the virus … |
 |
A medical worker takes a swab sample from a citizen for nucleic acid test at a testing site in Suifenhe, Northeast China’s Heilongjiang province, Jan 31, 2022. [Photo/Xinhua] Bloomberg article: Zero-tolerance approach ensures goods keep flowing ‘to rest of world’ Global supply chain problems and inflation could be much worse if China, the world’s factory, hadn’t taken a sweeping approach … |
 |
BEIJING – China’s two most widely used COVID-19 vaccines, developed by Sinovac and Sinopharm, were shown to be effective against the Delta variant of the coronavirus, a study based on real-world data in the country showed on Tuesday. The two vaccines were 52% effective against Delta infection and 60% for symptomatic disease, researchers wrote in a peer-reviewed paper. The study … |
 |
In order to guide various localities to carry out the COVID-19 mixed collection detection work and further improve the nucleic acid detection capability and efficiency, The Medical Rescue Team of the Joint Prevention and Control Mechanism of the State Council recently released the “Technical Specifications for 20-in-1 Mixed Collection and Detection of COVID-19 Nucleic Acids”. The “Specification” is divided into … |
 |
Chinese health authorities have adopted faster-pooled tests for the coronavirus that allow professional labs to process 20 samples at a time. The updated testing techniques, based on the current practice of putting five or 10 swab samples together and testing as one, are aimed at sharply boosting the efficiency of virus testing, said the State Council inter-agency task force for … |
 |
Carrying out nucleic acid testing can quickly detect virus infected persons, which is a very important strategic measure for COVID-19 prevention and control. At the same time, the safety of nucleic acid testing sites should not be neglected, and we should strengthen control and disinfection to prevent the risk of infection. Staffing and Protection Each sampling site should be equipped … |
 |
Viral social media posts say swabbing your throat will yield a more accurate COVID-19 test. The FDA warns it could be dangerous. AUSTIN, Texas — After a trend on social media, the U.S. Food and Drug Administration (FDA) warns about safety concerns in swabbing your throat for an at-home COVID-19 test. Throughout most of the pandemic, many at-home tests required swabbing nostrils … |
 |
According to Bloomberg News, on January 3, the United States reported more than 1 million new confirmed cases of COVID-19 in a single day. This number created a new global record for single-day COVID-19 in a single country.and the new cases of COVID-19 on January 3 were almost twice as many as the new record set in the United States … |
