Look at the news Knews reporter Ren Meixing Pan Yi
2021-10-22 13:57
On Thursday, local time, the US Centers for Disease Control and Prevention (CDC) held a meeting and finally finalized the COVID-19 vaccine enhancement plan.
On the same day, an expert group from the US Centers for Disease Control and Prevention discussed two pressing issues: Moderna and Johnson & Johnson (JJ) vaccine enhancement vaccination population, and whether it can be vaccinated with different brands of enhanced vaccines from the pre-order vaccine. Although the U.S. Food and Drug Administration (FDA) had given the green light to all the above issues on Wednesday, the final distribution of the two companies to strengthen the shots and implement "vaccine scrambles".
At present, about two-thirds of Americans who are eligible for the COVID-19 vaccine have completed vaccination. Since regulators approved last month, millions of people have received Pfizer's enhancement shots. The meeting discussion showed that strengthening the acupuncture can effectively enhance the body's immunity to mild COVID-19, but the government's main task is to reduce the unvaccinated population as soon as possible. Experts stressed that all vaccines on the market can still effectively prevent hospitalizations and deaths caused by the new crown.
"For most people, in most cases, COVID-19 deaths can be prevented by vaccination," said Dr. Matthew Daley, a consultant to the CDC and a Colorado medical institution Kaiser Permanente.
After 7 hours of discussion, the final voting results of the expert group were consistent with the ruling of the Food and Drug Administration. For those who have received mRNA vaccines (including Pfizer and Moderna), the team recommends providing enhanced shots for elderly people aged 65 and older, nursing home residents, and young adults at an increased risk of infection – including healthcare workers, teachers and people in prisons or shelters.
In addition, the materials at the meeting showed that Johnson & Johnson's single-dose vaccine was obviously not as effective as Pfizer or Moderna's two-dose vaccine. Therefore, the expert group recommends that all people who have received the Johnson & Johnson vaccine need to receive a booster injection after two months of interval.
As for the issue of "mixed" vaccines, the Food and Drug Administration said that any American who is eligible for a booster shot can choose one of the three vaccines on the market. At Thursday's meeting, the CDC expert group still recommended choosing previously vaccinated vaccines to strengthen immunization, but said that if you have strong personal preferences or because of limited local vaccine varieties, you can take a "mix" operation.
Currently, scientists at the National Institutes of Health (NIH) are testing combinations between different vaccines and booster shots. Preliminary data show that switching between the mRNA vaccine and non-replicative viral vector vaccine can produce a richer immune response than the booster injection of the allova.
Edited by: Jin Liwei
