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, eccetera. 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 (CUCITURA) ad esempio …

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. in circostanze normali, the new crown nucleic acid can be quickly detected within 96 hours after infection. Testers can find the virus …

1. To avoid vomiting, non mangiare 2 hours before sampling 2. To avoid affecting the test results, 30 minuti prima del campionamento, 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 “Specifiche tecniche per la raccolta mista 20 in 1 e il rilevamento degli acidi nucleici COVID-19”. IL “Specification” is divided into …

La sterilizzazione è l'uso di metodi fisici o chimici per distruggere tutti i microrganismi, compresi un gran numero di spore batteriche resistenti. Renderlo sterile per evitare infezioni e diffusione di malattie durante l'uso. I metodi comuni di sterilizzazione medica includono: sterilizzazione a calore secco, sterilizzazione a calore umido, sterilizzazione a gas, sterilizzazione mediante radiazioni, sterilizzazione del filtro, eccetera. Quella che segue è una breve introduzione a questi metodi di sterilizzazione …

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 …

The masks on the market are basically divided into three categories: maschere civili, maschere mediche e maschere protettive respiratorie professionali. Maschere civili, come le mascherine infermieristiche usa e getta. Si riferisce principalmente alle mascherine protettive quotidiane che soddisfano le esigenze della vita quotidiana e del lavoro della maggior parte delle persone. Le mascherine mediche si dividono in mascherine protettive mediche (Maschere N95), medical surgical masks and …