health
Written by: Zhang Yuru
2021-06-29 12:43
Last update date: 2021-06-29 12:47
The new crown pneumonia epidemic has been repeated, and the Delta variant virus has appeared. The Delta variant virus has made everyone panic. Experts say that the variant virus is more virulent and has a stronger transmission power. And the symptoms of the variant virus will change afterwards?
Infection with the Delta variant virus does not have a cough, and it is not as common as a normal infection. There will be symptoms of loss of smell. It is easy to misunderstand that it is just a bad cold, and it is not possible to seek medical attention as soon as possible.
The novel coronavirus pneumonia (COVID-19) epidemic is heating up, and the Delta variant virus strain first discovered in India has caused outbreaks in many places.
According to the World Health Organization, Delta, the new coronavirus variant virus, is currently the most infectious variant virus known and has spread to at least 85 countries.
As of June 24, 131 cases of L452R virus strains have been recorded in the port of Japan, of which 129 cases are imported and 41 cases are Delta virus.
Dr. Lin Wenjian, Director of the Center for Health Protection of the Department of Health, pointed out that studies have shown that Delta virus is also highly infectious and viral.
To avoid infection, you must first understand the characteristics of the virus and the symptoms of infection!
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Symptoms and changes of Delta variant virus
▼What are the changes in the symptoms of Delta virus?
What is the difference between infectivity and incubation period?
(According to the picture 👇👇👇)
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1. No cough and loss of smell?
British statistics found that the symptoms caused by the Delta variant virus seem to be different from previous virus strains.
According to data from the Zoe Covid Symptom study of the new coronary pneumonia in the United Kingdom, patients with pneumonia since May will have more headaches, followed by sore throat, runny nose and fever.
Coughing has become rare, and loss of smell is almost gone
.
Some experts worry that patients will misunderstand that it is only a bad cold instead of new coronary pneumonia, which will delay treatment and increase the chance of spreading to others.
▼ In the same scene: A cold is generally an upper respiratory tract infection, while patients with new coronary pneumonia will have lower respiratory tract symptoms. Both will have symptoms such as fever and sore throat, which are easy to confuse. In addition to fever, what are the different symptoms of new coronary pneumonia from colds and flu?
One article to understand the 5 differences between new coronary pneumonia and colds
(according to the picture to understand 👇👇👇)
2. The Delta variant virus has a longer incubation period?
Associate Professor Xiao Jieheng of the Department of Medical Technology and Informatics of PolyU said on a program in Hong Kong and Taiwan that the average incubation period of the mutant virus is 3 days, but it can be as long as 21 days. Therefore, the incubation period of 11 days for male ground workers is not too long.
He also said that the high viral load of patients with Delta variant virus can be maintained for 18 days, increasing the risk of spreading in the community.
Related Articles: Delta Variant Virus | Xiao Jieheng: High viral load can sustain 18 days and increase the risk of community transmission
3. Young people are more susceptible to infection?
As of June 26, there were 18,000 newly confirmed cases in the UK, almost all of which were cases of the Delta variant virus.
But unlike past outbreaks that mainly infected the older generation, the new Delta variant mainly infects young people.
According to research conducted by Imperial College London, in this outbreak, the proportion of young people infected was five times that of the older generation.
▼In addition to changes in symptoms of Delta variant virus, why is it said that young people are susceptible to infection?
The spread of mutant viruses is even more amazing?
(According to the picture 👇👇👇)
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However, this may be related to the fact that vaccination is mainly concentrated in the older generation, because the vaccination rate of young adults is lower, and the Delta variant virus is more likely to spread than the Alpha variant virus found in the UK, and young people have higher mobility and exposure. More people increase the risk of infection.
Related Article: New Coronary Pneumonia | Delta Variant Virus Young People's Susceptibility to Infection Symptoms Are Different
4. Is it more communicative?
Compared with the traditional new coronavirus strain, the recommended social distance is 1 meter, the Delta variant recommends staying more than 2 meters.
However, experts warn that even if they are separated by 2 meters, they will only reduce the risk of infection, which does not mean that they will not be infected.
Professor of Kobe University: "Indian Delta strain, even if it is 2 meters away, there is a 10% chance of being infected.
5. The definition of "close contacts" of the Delta variant virus has changed?
Zhong Nanshan, a Chinese epidemic prevention expert, pointed out that the definition of "close contacts" may no longer apply. "In the same space, in the same unit, in the same building, in the same building, four days before the onset of illness, these people who get along with these patients They are in close contact." This is different from the previous definition of "close contact": Two days before the onset of illness, family members who were with the patient and employees in the same office had shared meals and meetings within one meter.
Related article: Delta variant virus | 2 meters social distance still has a 10% infection rate 4 days before the onset of close contact
▼Patients with new coronary pneumonia will have other uncommon symptoms. If they are not concerned, they are easy to ignore (according to the picture 👇👇👇):
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Will the vaccine work against the Delta variant virus?
According to statistics collected by the Scottish Public Health Agency and published in the authoritative medical journal Lancet, at least two weeks after the second dose of vaccination, the protection rate of Pfizer vaccine against Alpha mutation is 92%, which is the protection of Delta The rate dropped to 79%; while the protection rate of the Oxford AstraZeneca vaccine against Alpha dropped from 73% to 60% of the Delta protection rate.
Related article:
New Coronary Vaccine｜A single shot is effective?
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