increases, there are also increasing concerns about secondary infection of with . Many people on the Internet also say that the second infection will be more serious than the first time? Is
real?
The so-called secondary infection of the new coronavirus refers to the situation where a person gets the new coronavirus and is infected again after recovering.
Many people confuse secondary infection with relapse, but in fact they are different.
From a time point of view, in the initial stage of infection, the probability of re-positive cases in confirmed patients will be greater, especially in the first 3 months after infection, which reaches the highest level, with about 1% to 2% possibility. As for the interval between reinfections, research data shows that the median to is 10 months, which varies from person to person.
Judging from the number of infected viruses and , the number of viruses in patients with re-positive symptoms will be relatively low. In patients with secondary infections, the infection rate is higher than in patients with re-positive symptoms.

So, will it be more serious after being infected with new crown for the second time?
According to the general rules of human immunology, previous infection has produced immunity . When infected again in the future, the symptoms will be relatively mild. The same is true for the new coronavirus.
One of the secondary infection data from Serbia shows that 99.17% of the 13,792 cases of secondary infection are mild, and only 1.08% of secondary infections require hospitalization.
Generally speaking, there is no big difference between the symptoms of secondary infection and the first infection. If you are infected with the same strain, the symptoms of the second infection are likely to be lower than those of the first infection. Therefore, there is no theory that symptoms will be more severe after a second infection with COVID-19, as everyone is worried.
But regardless of whether the secondary infection will be more serious, after we recover from the new coronavirus, we must take personal safety protection measures to try to avoid secondary infection.

Who is more likely to be infected again?
According to data from the British Department of Statistics, the following types of people are more likely to be re-infected:
1. People who have not been vaccinated
People who have not been vaccinated are more likely to be re-infected, because a certain immunity will be generated when the virus is infected, but this immunity is not as strong as the mixed immunity generated after vaccination and infection.

2. Older people and infants
due to physical reasons, their resistance to viruses is not that great, especially those with underlying diseases, so the probability of secondary infection is slightly higher, but most secondary infections occur after 3 months or half a year.
3. People with relatively low immunity
If their own immunity is relatively low, they will not be as resistant to viruses as healthy people, so these people should pay special attention.
There are also some theories. For example, people who are asymptomatic for the first infection may be more likely to be infected again than those who are symptomatic for the first time. However, there is currently no strong data to illustrate this.
Therefore, after recovering from the new coronavirus infection, you still need to strengthen your awareness of self-prevention and take protective measures. The following points need to be paid attention to in daily protection:
1. Vaccination
According to data from the British Bureau of Statistics, people who have not been vaccinated are more likely to be infected again. They are twice as likely to be infected as people who received their second dose of vaccine 14 to 89 days ago. Therefore, timely vaccination of the new crown vaccine is still one of the effective personal protection measures.

2. Wear a mask
In public places, you must wear a mask correctly. Replace used masks promptly and wash hands frequently to avoid cross-infection.
3. Maintain appropriate social distance
Maintaining a safe social distance of 1 meter can effectively reduce the spread of the virus.
4. Go less to crowded places and pay attention to ventilation
Try to avoid going to crowded public places and ensure good ventilation even indoors.
5. Strengthen nutrition and physical exercise
In daily life, we must strengthen nutrition and eat more foods rich in protein ; exercise more to enhance the body's resistance.

Winter has come, can spring be far behind? I believe that the epidemic will be over one day, and I look forward to it.