At present, most of the people who have reported positive tests for the new coronavirus in China are asymptomatic infected people . So, what is an asymptomatic infected person in ? Are asymptomatic infections contagious? What should the public pay attention to in their daily lives? Hubei Disease Control Expert reminds: You should know about asymptomatic infections!
What is an asymptomatic infection?
Asymptomatic infection refers to those who have positive etiology tests for the new coronavirus but have no relevant clinical manifestations, such as fever, dry cough, fatigue , sore throat, decreased sense of smell (taste), diarrhea, etc., which can be self-perceived or clinically recognized, and CT imaging does not have the imaging characteristics of the new coronavirus pneumonia.
How are asymptomatic infected people discovered?
Asymptomatic infections are mainly discovered through close contacts of close contacts, inbound personnel, risk occupational population, personnel in key institutions and places, and included in community management groups, etc. nucleic acid detection , infection source tracking, epidemiological investigation , regional population active screening , etc.
Asymptomatic infected people are at risk of transmission
Asymptomatic infected people are also contagious, mainly through the transmission of respiratory droplets and contact to others.
01
propagation occultity. Since asymptomatic infected people do not have any obvious symptoms or signs, it is difficult to detect in the population. The transmission caused by asymptomatic infected people is difficult to prevent.
02
1 is not proactive in visiting the doctor. Since the symptoms of asymptomatic infected persons are mild or atypical, the infected person may mistakenly believe that he is not infected with the new coronavirus and will not take the initiative to go to a medical institution for treatment.
03
is hard to be discovered. Due to the existence of a testing window period, it is difficult to detect all asymptomatic infections using nucleic acid testing and serological testing methods. The existing asymptomatic infections are mainly discovered through active screening of close contacts of the case, investigation of the source of infection, investigation of clustered epidemics and active testing of high-risk personnel.
The reason for the increase in asymptomatic infections
1
With the continuous mutation of the new coronavirus, the currently popular Omickron mutant strain has increased infectivity, its toxicity is relatively weak, and its clinical symptoms are relatively mild, which will cause many infected people to show no clinical symptoms after infection.
2
is related to large-scale population immunization. The coverage rate of vaccination is now high. After vaccination, the human body's immunity is enhanced. Even if it is infected, some symptoms may not be shown, and vaccination is still very effective.
3
is related to early discovery. Due to the rapid screening and rapid discovery of the disease control team, some early infections were quickly discovered and detected before they had time to develop symptoms. The more meticulous the work on , the higher the probability of "intercepting" infected people in the early stage, and the more timely disease transmission control is. Asymptomatic infected people are the people who are "intercepted" in the early stage.
Asymptomatic infected people need treatment?
At present, asymptomatic infected people do not need special treatment, they only need to undergo centralized isolation and medical observation. During the centralized medical observation period, asymptomatic infected people with blood routine , CT imaging examinations and antibody detection are carried out according to the situation.If relevant symptoms or signs appear in the future and meet the diagnostic criteria for confirmed cases, they will be revised to a confirmed case and will be treated as a confirmed case.
has no obvious symptoms for asymptomatic infected people, but is contagious and contagious. Hubei disease control experts remind: In daily life, the public should not relax their vigilance. should continue to strengthen self-protection and develop healthy lifestyles such as washing hands frequently, wearing masks, ventilating frequently, not gathering, one-meter line, separate meals, covering their mouths and noses, especially when entering and leaving public places, taking transportation, and entering crowded places, they should wear masks scientifically; actively get vaccinated to build an immune barrier; actively cooperate with the community to complete the nucleic acid screening . If an individual has a positive nucleic acid test, there is no need to panic. If a person has a positive nucleic acid test, he should cooperate with medical and health institutions to do a good job in health monitoring and isolation medical observation.
Source | Hubei Provincial Center for Disease Control and Prevention
