What should I do if my neighbor is “yang”? How to avoid cross-infection at close isolation points? Experts from Zhongshan Hospital tell you | Popular science of war “epidemic”

The neighbor is “yang”, what should I do? How to avoid cross-infection at close isolation points? Omicron has 200 sequelae and can cause death? The answers are all here! Professor Hu Bijie, director of the Department of Infectious Diseases and the Department of Hospital Infection Management, Zhongshan Hospital Affiliated to Fudan University, explained the issues that citizens care about.

Q1My neighbor is “yang”, what should I do?

First of all, don’t panic. Wait for the notification from relevant departments such as CDC or neighborhood committee. During this period, pay attention to good environmental ventilation, standardize the wearing of masks, and maintain a safe social distance. In addition, nucleic acid or antigen detection can be performed under conditions.

Q2 I am a close contact, how long do I usually have to isolate?

Although the incubation period of Omicron is relatively short: as short as 1 day, on average 3 days, and as long as 6-7 days. However, according to the national requirements, 14+7 (centralized isolation + home medical observation) is still required.

Q3 At the close isolation point, how to avoid cross infection?

During the quarantine period, you should obey the arrangement and do not leave the room without authorization. Behaviors such as walking in the corridor are absolutely prohibited. At the same time, improve your immune function, especially during the isolation period, maintain a good mood and adequate sleep, and do some activities in the house properly, which can enhance your resistance and help fight the virus.

Q4 How do I know if I have the new crown?

Omicron is very different from the original new crown virus 2 years ago. The proportion of true pneumonia is very low, and most of the CT tests show normal results. Most infected people are also asymptomatic, and a small number of infected people have fever symptoms. Now the “gold standard” for diagnosing the new crown is nucleic acid testing. However, ordinary citizens cannot achieve nucleic acid testing every day, so there is another way to do it is antigen testing. Shanghai distributed antigen kits to all citizens a week ago.

The advantage of antigen detection is that it can be detected by itself, but the disadvantage is that its sensitivity is relatively low, especially in the incubation period on the first day of the onset and one week after the onset of the onset, its test results are often negative. However, within 5 consecutive days from 1-2 days after the onset of the disease, it is a period of time when the virus is highly contagious, and the antigen test can be positive, and the case can be detected in time. Therefore, it is recommended that you keep an antigen kit at home, and you can test it when you have doubts or when there are people with fever around you, and you can test it multiple times if necessary.

Q5I work in the company, how can I prevent the new crown?

It is very important to standardize the wearing of masks, ventilation, hand hygiene and surface disinfection. There are many new asymptomatic infections every day, and there may be a risk of infection at any time. At this time, you should be careful whether you will be infected by colleagues who work together, especially if the office space is relatively small. The high risk factor of being infected at work is eating, because it is inevitable to take off the mask, and it is especially recommended that everyone must eat at off-peak hours.

Q6Omicron has 200 sequelae? Will it kill?

This statement greatly exaggerates its after-effects. As a viral infection, Omicron is largely confined to the upper respiratory tract compared to the type of virus that frequently invaded the lower respiratory tract two years ago. As long as the patient’s immune function is normal, sequelae rarely appear, and they can basically recover completely. At present, more than 95% of the infected people in Omicron are asymptomatic and mild, only 3-5% of the common type, and the severe and critical types are rare.

Q7 Omicron, what drug is used for treatment?

Mainly asymptomatic and mild, basically no medication. If you have sore throat, muscle aches, or fever, you can use cold antipyretics. A small number of people may have bacterial infections, and oral antibiotics are sufficient. There are high-risk factors, such as elderly patients, we must focus on protecting these groups. If there is an infection, according to expert evaluation, within 5 days of onset, the use of nematevir/ritonavir tablets (Paxlovid) can effectively inhibit the development of severe disease and avoid the death of patients. At the same time, traditional Chinese medicine can also play an important role, and early use in high-risk groups can effectively curb the aggravation of the disease.

Q8I have been diagnosed with COVID-19, how long should I be in quarantine?

The nucleic acid turns negative, and the interval is more than 24 hours, and you can be discharged from the hospital twice in a row. It usually takes about 2 weeks from the onset of the nucleic acid to turn negative, and the latter stage is basically non-infectious.

Q9 What should I do with my clothes when I leave the isolation treatment point?

There is talk of throwing away or burning, which is unnecessary. The virus can survive on many surfaces for 1-2 days at room temperature, and the clothes are put in suitcases or plastic bags, and they are no longer infectious after a few days.

*Wenhui’s exclusive manuscript, please indicate the source for reprinting.