O que é um falso negativo COVID-19? Isso significa que o resultado de um determinado teste deveria ser positivo, mas o resultado é negativo devido a razões como operação, equipamento, características físicas pessoais, etc. Resultados positivos foram obtidos após repetidos testes negativos, amostras de esfregaço de garganta foram negativas para vários testes, mas finalmente resultados positivos foram detectados na lavagem respiratória …

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 (COSTURA) como …

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 é uma variante do coronavírus que pode causar pneumonia em humanos. É uma doença infecciosa respiratória aguda, altamente contagioso, e a maioria das pessoas é suscetível. É facilmente replicado no trato respiratório superior de humanos. sob circunstâncias normais, o novo ácido nucleico da coroa pode ser rapidamente detectado dentro 96 horas após a infecção. Os testadores podem encontrar o vírus …

1. To avoid vomiting, não coma 2 hours before sampling 2. To avoid affecting the test results, 30 minutos antes da amostragem, 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 …

PEQUIM – 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”. O “Especificação” is divided into …

Sterilization is the use of physical or chemical methods to destroy all microorganisms including large numbers of resistant bacterial spores. Make it sterile to avoid infection and spread of disease during use. Common medical sterilization methods include: dry heat sterilization, moist heat sterilization, gas sterilization, radiation sterilization, filter sterilization, etc. The following is a brief introduction to these sterilization methods …

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: máscaras civis, máscaras médicas e máscaras de proteção respiratória profissionais. Máscaras civis, como máscaras de enfermagem descartáveis. Refere-se principalmente às máscaras de proteção diárias que atendem às necessidades da vida diária e do trabalho da maioria das pessoas.. As máscaras médicas são divididas em máscaras de proteção médica (Máscaras N95), medical surgical masks and …