How to distinguish between infected and non-infected people in novel coronavirus?

For asymptomatic infections, they are COVID-19 virus carriers. Asymptomatic infection means that there are no clinical symptoms such as fever, stuffy nose, runny nose, sore throat, cough and chest tightness. But the nucleic acid test results were positive. Asymptomatic infected people have strong immunity and can't get sick within 14 days after being infected with the virus. If the virus exists in their bodies for more than three weeks, there is a possibility of infection. If it is not found and isolated in time, there will be hidden dangers of community communication.

First, the current research results show that the main source of infection is patients infected with novel coronavirus. Asymptomatic or mild recessive infection may also become the source of infection, because asymptomatic infection has relatively hidden clinical symptoms, which makes the infection in novel coronavirus difficult to control and easy to cause the accumulation of infectious sources in the community.

Second: What if an asymptomatic infected person has COVID-19's symptoms? If COVID-19 has symptoms such as fever, cough, stuffy nose, runny nose and chest tightness, it will become a confirmed case, indicating that the virus concentration in the body will be high, that is, it will become a carrier of COVID-19 virus. Therefore, asymptomatic infected people must be strictly isolated and observed.

Treatment of cases with confirmed symptoms: 1. Stay in bed, strengthen supportive treatment, and ensure adequate heat; Pay attention to the balance of water and electrolyte and maintain the stability of internal environment; Closely monitor vital signs, blood oxygen saturation, etc. 2. Monitor blood routine, urine routine, CRP, biochemical indexes (liver enzyme, myocardial enzyme, renal function, etc. ), coagulation function, arterial blood gas analysis, cytokine detection if possible, and chest image review. 3. Give effective oxygen therapy measures in time, including nasal catheter, mask and nasal cavity large flow oxygen therapy. 4. Antiviral therapy: At present, there is no effective antiviral therapy. Try inhaling interferon-α (adult 5 million U or equivalent, sterile water for injection 2 ml twice a day), two tablets of Lopinavir/Ritonavir (200 mg/50 mg, each tablet), or ribavirin! The recommended dose is wrong. See the top of the message for details. The first dose for adults is 4 g, 8 hours every other day 1 time, each time 1.2 g, or 8mg/kg intravenous injection every 8 hours). Attention should be paid to the adverse reactions related to lopinavir/ritonavir, such as diarrhea, nausea, vomiting, liver function damage and interaction with other drugs. 5. Antibiotic treatment: Avoid blind or improper use of antibiotics, especially the combined use of broad-spectrum antibiotics.

Conclusion: For asymptomatic infected people, asymptomatic people need to be isolated for 14 days without deliberate treatment, and pay attention to the changes of signs. Patients with suspected incubation period should be strictly isolated, subject to professional medical observation and actively receive treatment. Talking about preventive measures, nothing will change. Please ask ordinary people to take the most basic precautions. Reduce the frequency of going out, wear a mask strictly when going out, keep a distance of at least one meter from people, wash your hands frequently (after going home, before and after meals, after touching other things), and disinfect and ventilate your home. Both asymptomatic infected people and confirmed patients are infected, and the difference between them lies in whether there are clinical manifestations and disease changes.

2. The diagnosed patients and asymptomatic infected people should be treated equally in management, and their close contacts should be isolated and observed. The treatment methods adopted by confirmed patients and asymptomatic infected people are definitely different. The treatment of each patient is different, and the treatment plan will be formulated according to each person's physical condition. No, because the symptoms of two people are somewhat different, so we should treat them differently. I think it should be the same. After all, everyone is infected with the same virus, and the principle is the same, so the treatment process will not be very different.