The delta variant that caused the coronavirus surge in the United States. According to Harvard experts, children around the world may be more contagious and may be more severely ill. As schools open and the weather gets colder, the number of cases is expected to increase.
“There are good reasons to believe that (the delta variant) is more infectious to children and children than the old variant, which means that at the social level, we see more cases in all age groups, including children,” Harvard University Said Marc Lipsitch, an infectious disease epidemiologist at the Chen Zengxi School of Public Health.
Lipsitch said that even if the delta variant spreads in the community, children are still much less likely to be infected with severe coronaviruses than adults.
But as schools reopen and the weather gets colder, the number of cases is expected to increase.
Lipsic said at a virtual briefing on Tuesday: “We will face a large number of infections in children, most of which will be mild, but some of them will be more serious.”
As the number of coronavirus cases increases, so will the number of severe cases.
Compared with other virus strains, more data is needed to understand the exact infectivity and severity of delta variants, but Lipsic said there is “reason to believe” that delta may be more severe in children.
Lipsitch said it is obvious that children will be exposed to the coronavirus in school and at home. He said that even vaccinated adults infected with delta variants can transmit the virus to unvaccinated children.
Lipsitch said: “Vaccinated adults infected with delta are clearly at risk of infecting children. Whether this happens frequently will be an important research question in the coming weeks.”
Children 12 years and older are currently eligible for vaccination, and the United States has launched a number of back-to-school vaccination programs. However, many parents of young children are anxiously waiting for approval to vaccinate their children.
Lipsitch said that children between the ages of 5 and 11 may be eligible by the end of this year or early 2022.
At the same time, Lipsitch said that wearing masks indoors and maintaining proper hygiene and ventilation in schools will help keep the classroom in class and minimize the valuable time that may be lost due to illness or isolation.
He added that it is important to change the cover policy flexibly and openly. “Wearing a mask is not an interesting idea.”