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Antibody rapid detection reagent: how long can the new corona virus live on common items

Views: 0     Author: Site Editor     Publish Time: 2022-02-15      Origin: Site

During the epidemic, in order to ensure that they are "invulnerable to all poisons", many people wore their face masks and gloves. We used to push the elevator buttons back and forth, but now we feel terrified when touch them. The doorknob which is most common item, is polished with disinfectant every day. Many people can't help but ask, how long can the new coronavirus survive on these common items? How much do you know about the ABC of the new coronavirus?

How long can the new coronavirus live on common items?

A few days ago, a joint team from the US National Institutes of Health, National Center for Immunization and Respiratory Diseases, Princeton University, University of California(Los Angeles) and other top international scientific research institutions published a preprinted article on Medrxiv, specializing in the study of the new coronavirus survivability on the surface of aerosols and materials.

The experimental results show that under normal air humidity and temperature conditions, the new coronavirus can survive at least 4 hours on copper surfaces, 24 hours on cardboard, and longer on polypropylene plastic and stainless steel surfaces, reaching 72 hours. In the environment of aerosols with higher humidity, the new coronavirus can also survive for more than 3 hours.

What is the difference between the new coronavirus and the flu virus

covid 19

According to the daily epidemic report released by the World Health Organization on the evening of March 6, although both the new coronavirus and influenza virus can cause respiratory diseases, there are essential differences between the two:

First, the speed of propagation is different. COVID-19 spreads slower than the flu, but has a longer median incubation period.

Second, patients spread the virus at different times. Influenza virus transmission occurs mainly within 3 to 5 days after a person begins to show symptoms, but it may also spread before symptoms appear. By contrast, while some cases of Covid-19 can spread the virus 24 to 48 hours before symptoms appear, this is not currently the predominant one.

Third, the infectivity is different. According to the assessment of the basic reproduction number, the new crown pneumonia is more infectious than the flu.

Fourth, the proportion of severe cases is different. Data to date show that 80% of people infected with the new coronavirus are mild or asymptomatic, 15% are severely infected, and 5% are extremely severe infected. Severe and very severe infections percentage are higher than influenza.

Fifth, there are certain differences among susceptible groups. The main risk groups for influenza include children, pregnant women, the elderly, people with other chronic diseases and people with immune system problems. For COVID-19, current research shows that older adults and people with other medical conditions are at higher risk for serious infection.

Sixth, the mortality rate is different. While it will be some time before the COVID-19 fatality rate can be determined, current data suggest that the COVID-19 fatality rate is around 3% to 4%, while the seasonal flu fatality rate is usually well below 0.1%.

How can individuals protect against the new coronavirus?

Tedros Adhanom Ghebreyesus, Director-General of the World Health Organization, said at a regular press conference on February 28 that "Curbing the epidemic starts with you". The WHO has given 10 basic recommendations for personal preventive measures against the new coronavirus.

First, wash your hands regularly with an alcohol-based hand sanitizer or with soap and water. Hands touching a contaminated surface or a patient's face is one of the ways the virus spreads, so cleaning your hands can reduce the risk of spreading the virus.

Second, regularly clean surfaces, such as kitchen tables, chairs, and desks, with disinfectant.

Third, educate yourself about COVID-19, but make sure the information comes from credible sources such as local or national public health agencies, WHO websites, local health professionals, etc. For most people, the initial symptoms of contracting the new coronavirus are a fever and a dry cough, not a runny nose. Most infected people have mild symptoms and get better without any special care.

Fourth, avoid travel when you have a fever or cough, and notify the crew immediately if you get sick during flight. When you get home, you should contact your health care provider and tell them where you have been.

Fifth, cover your cough or sneeze with your sleeve or use a tissue. Dispose of tissues immediately to a closed trash can after use, then wash your hands.

Sixth, people over the age of 60 or those with underlying diseases such as cardiovascular disease, respiratory disease, and diabetes may have a higher risk of severe illness after infected the new coronavirus. Such groups should take extra precautions, such as avoiding crowded places or places where they may interact with patients.

Seventh, if you feel unwell, stay home and call your doctor or local health care provider who will ask about your symptoms, where you have been, and who you have been in contact with. This will help you get the right advice or be directed to the right healthcare facility and prevent infecting others.And do antigen rapid test kit to check if you were infected Covid-19.

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Eighth, stay home when sick, eat and sleep separately from family members, and use different tableware.

Ninth, if shortness of breath occurs, seek medical attention immediately.

Tenth, it is normal and understandable to feel anxious during a pandemic, especially when living in a country or community that has been impacted by the pandemic. Learn about the community's measures to prevent and control the epidemic outbreak, and discuss how to stay safe in workplaces, schools, and others.

The new coronavirus may exist for a long time, how can we prevent it?

Wang Chen, vice president of the Chinese Academy of Engineering and an expert in respiratory and critical care medicine, said that the new coronavirus may coexist with humans like the flu virus. To this end, we must make corresponding preparations in clinical diagnosis and treatment and production and life prevention.

Ke Huixing, deputy director and chief physician of the Department of Respiratory and Critical Care Medicine of Beijing Hospital, introduced that the basic law of virus evolution is to "keep co-evolution with the host". Viruses are mainly reproduced by fission. The fundamental purpose of virus entering the host is to obtain the substances and energy it needs from the host. This "action" can make humans sick and even die. But from the perspective of viruses, in order to ensure that they can obtain energy from the host for a long time, they need to adapt to the environment of different hosts. As a result, the virus mutates as it reproduces so that it can stay in the body longer and be able to spread.

The "strategy" adopted by the new coronavirus this time is low toxicity and high infectivity, which gives them more chances to infect humans and can survive on infected patients for a long time. With the deepening of people's understanding of the new coronavirus, the development and application of vaccines, and the discovery of specific drugs, people's immunity to the new coronavirus will also be improved. Combining various factors, the new coronary pneumonia in the future may be a preventable and controllable disease like the current flu.

Ke Huixing said that in the short term, the toxicity of the new coronavirus will not be reduced to the level of influenza virus. Even if it does exist for a long time one day, we do not need to panic. We only need to make some adjustments in public health and personal protection. response. For example, in terms of clinical practice, improving the infectious disease prevention and control system, especially the reporting system and epidemic prevention measures, and setting up more infectious disease hospitals and wards; in terms of social life, wearing masks, washing hands frequently, and frequent ventilation should be part of people's lives. Normally, during the peak period of the epidemic, try not to arrange or participate in crowded activities.