positive surge
from 2,000 positive cases to 3,000. The new coronavirus variant BF.7 only took 2 days in Hohhot. This shows how terrible the virus BF.7 is this round of mutated virus? What is frightening is that this is only the initial stage of the epidemic. As time goes by, this number will inevitably change greatly during the rising period.
, and the problem we were worried about also happened, that is, virus leakage. At present, BF.7 virus has been confirmed positive in many places across the country, which means that the virus may have used the National Day holiday to spread concealed and dispersed.
Local epidemic prevention
Although localities have issued relevant announcements before the National Day. Do not go out unless necessary. Even if you go out, you must protect the epidemic well, but there are nothing more than that. There are always some individual cases. The first positive case of BF.7 was found in Hohhot, Inner Mongolia for the first time. Once BF.7 is confirmed, you can also know that this person has been to , Hohhot, and Hohhot, or has briefly contacted people who have been to Hohhot.
The epidemic prevention is even more difficult
Why is the epidemic in Hohhot so severe, and why has the epidemic in Hohhot spread? In fact, there are some things that people cannot stop. And when facing the new coronavirus variant, it is even more difficult to stop its spread.
When a new variant appears, it is necessary to combine big data to determine a series of characteristics of the virus, such as the toxicity, infectivity and escape of the virus. Combined with these characteristics, local epidemic prevention strategies are specified. This is what makes the terrible part of the BF.7 strain.
super-strong strain
BF.7 combines all the characteristics of BA.5 and BA.2.76, with super infectiousness, latency and escape, resulting in the invasion of it that it is hard to defend against. Through investigation of relevant data, on September 27, Hohhot's official announcement did not include new or imported cases.
However, on September 28, a positive confirmed case of COVID-19 was found through the nucleic acid test of by key personnel. This positive confirmed case of new coronavirus is the first case of infection with the BF.7 strain in China. If this is detected when a person gets off the plane, it will be destined to be the outcome of the virus.
incubation period is long
However, this nucleic acid test was not at that time, but in other places. Combined with the characteristics of the new coronavirus, we can know why the epidemic in Hohhot is so severe! The maximum incubation period of the new coronavirus is 14 days, and BF.7 inherits this feature, which means that the time for chasing the epidemic in Hohhot needs to be pushed forward and backward for 14 days.
And in the past 14 days, where has this case who was infected with BF.7 confirmed to be positive? According to the characteristics of the strain, there may be a new coronavirus anywhere this positive patient has been to. Perhaps the road it has been taken and after being walked by someone, it can be infected with the new coronavirus. Then you can think about what a person will do within 14 days and where have they been?
points dispersed
This has become a problem in tracing the epidemic investigation, and this is also the reason why the epidemic in Hohhot is becoming more and more serious, because when tracing the source of the epidemic, some traceability investigations are completely disconnected, and furthermore.
What is worrying is that a person inexplicably walked the path that a positive COVID-19 patient had taken, and then took advantage of the National Day holiday to return to his hometown or travel, and went to some places. Although nucleic acid testing and isolation are performed every time you go to a place, it is impossible to see at all due to the impact of the virus's incubation period.
unknowingly
universe guesses, this is the reason why BF.7 positive patients are diagnosed in various places. The one in Hohhot is easy to trace the source. After all, the first positive patient was found. Combined with the place where he passed, but if you want to trace the source again, it would be a huge problem if you want to trace the source again.
This article summarizes
The new coronavirus is becoming more and more powerful, and our epidemic prevention methods cannot be relaxed for a moment.It is worth mentioning that the cold winter is coming soon, and with the triple La Niña phenomenon, the virus may survive longer, and the cold winter is destined to become a breeding ground for virus transmission and survival. This also means that we still need to prevent the epidemic at all times and resist the virus hidden in the dark. #People's Daily: Dynamic clearance is sustainable and must be adhered to # #31 provinces increased by 427+1662 cases yesterday #
