"Fuyang" means that the symptoms of infected people basically disappear, and after the nucleic acid test and antigen test are negative, they are quickly tested positive. It is generally believed that some virus fragments detected at this time are not complete viruses, have no symptoms and infectivity, and have no influence on normal life.
"Secondary infection" means that COVID-19's infection has completely recovered this time, but COVID-19's infection has happened for the second time. Secondary infection is usually symptomatic, and the Ct value of nucleic acid is relatively low, with high viral load and strong infectivity.
Zhong Nanshan, an academician of China Academy of Engineering, said that foreign data show that once a person is infected with Omicron, 78% of people will not be infected again for a long time, regardless of symptoms.
The Hong Kong Centre for Health Protection quoted the World Health Organization as saying that although there is no evidence to show the specific time of immunization against Omicron mutant virus strains, according to the situation of previous mutant virus strains, it is expected that the immunization time will last at least 90 days.
However, it does not rule out that some elderly, frail and seriously ill patients have the risk of secondary infection within 3 months, nor does it rule out that they are infected by new mutants in a short time.
Regarding the symptoms of secondary infection, there have been two groups of completely different research data abroad:
A team in the New England Journal of Medicine pointed out that no matter how COVID-19 mutates, the antibody produced by the previous infection can significantly reduce the hospitalization rate and mortality rate of the later infection.
(Source: New England Journal)
The other group is from the Journal of Natural Medicine. Studies have shown that compared with patients who have only been infected once, patients who are reinfected, whether vaccinated or not, have a higher risk of complications, including lung, cardiovascular disease, diabetes, gastrointestinal tract and nervous system.
(Source: Natural Medicine)
The situation after secondary infection should be considered according to the individual's immunity at that time and the strength of the virus.
Generally speaking, there is not much difference between secondary infection and primary infection. If you are infected with the same subtype of virus, the symptoms of secondary infection will be lower than those of the first infection, and from the development law of the virus, the incidence rate in Omicron will be lower and lower.
The Spring Festival is coming, and I am most afraid of the "Double Ninth Festival" and turn it into a "Double Ninth Festival robbery".
Wear a mask: When entering the railway station and airport, and on the way by bus or plane, strictly wear a mask all the time.
Pay attention to a safe distance: When waiting for a bus at a railway station or an airport, you should keep a distance from others, minimize communication with strangers, and reduce staying and walking in crowded places.
Staggered meals: When flying, it is recommended to stagger meals with your neighbor, wipe your hands with disinfectant or wet towel before meals, and wear a mask in time after meals.
Pay attention to personal hygiene: when coughing or sneezing in public, don't take off your mask, cover your mouth and nose with paper towels or elbows, and pay attention to hand washing and disinfection. Conditional wearable portable air purification and disinfection machine can sterilize and disinfect with you!
Finally, I hope everyone can spend this special period safely and healthily ~