According to ABC and national public radio on the 28th, according to two U.S. officials, the U.S. Food and Drug Administration (FDA) may approve the second dose of neocoronavirus booster injection for Americans over the age of 50 as early as Tuesday (29th).
According to the report, there is increasing evidence that the protection of three doses of the new crown vaccine is weakening, and the fourth dose will help enhance immunity. With the more infectious Omicron BA, The 2 variant continues to spread in the United States, and there are growing concerns that it may lead to another surge in cases.
Dr Eric Topol, founder, and director of the Scripps Institute said he supported the plan. “Many of us have been vaccinated for at least four to six months after the third dose. Without protection against the Omicron variant, especially now we face ba. 2, the risk of hospitalization and death is very high,” he said
But others questioned the plan. Critics say the vaccine is still doing well in protecting people from serious diseases, and there is not enough evidence that it needs to be injected again. Infectious disease expert Celine gonder said data from Israel showed that additional booster doses could indeed reduce the risk of serious illness, hospitalization and death among people over the age of 60. But she pointed out that it was unclear how long this additional protection could actually last. Other infectious disease experts say the U.S. government should focus on getting people the main dose and strengthening immunity for the first time.
The report said that different from the previous authorization, the FDA is not expected to recommend the second dose of booster needle to everyone, but for those who need it to choose.
It is reported that Pfizer and Modena asked the FDA to approve a second dose of booster last week – especially for the elderly in the United States with weak immune protection. Pfizer asked the FDA to authorize people over the age of 65 to receive the fourth dose, while Modena asked for authorization to vaccinate people aged 18 and over.