CHANGCHUN — The northeastern Chinese cities of Changchun and Jilin, hardest hit by the fresh outbreak of COVID-19, have distributed millions of COVID-19 self-test antigen kits to citizens, including students, to accelerate massive epidemiological screening. Starting from 4 am Wednesday, Changchun, the capital of Jilin province, has given out more than 3.34 million self-test kits to part of its urban …

Disposable sterile sampling swabs are free from bacteria or other living microorganisms.  Generally used for biological sample collection to avoid sample contamination, and for medical use to avoid infection. The material and appearance design of the sampling swab will directly affect the sample collection effect. So, what standards do disposable sterile sampling swabs generally meet? Sampling swab head Synthetic fibers …

The COVID-19 Antigen Rapid Test is a lateral flow test for the qualitative detection of the nucleocapsid antigen from SARS-CoV-2 in anterior nasal swab specimens directly from individuals suspected of COVID-19 within the first seven days of the onset of symptoms. The test can also test specimens from individuals without symptoms. How to Do a COVID-19 Antigen Rapid Test (Self-Testing) …

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 …

1. To avoid vomiting, do not eat 2 hours before sampling 2. To avoid affecting the test results, 30 minutes before sampling, do not smoke, drink or chew gum 3. On the way to the nucleic acid test, wear a medical mask and try not to take public transportation 4. Keep a safe distance of more than 1 meter in …

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 …