This move is driven by both the highly contagious delta mutant and preliminary evidence that the vaccine’s protective effect begins to decline within a few months.
Washington — After months of struggling to convince Americans to get the COVID-19 vaccine, US health officials can quickly face new challenges.
As early as this week, U.S. health officials gave all Americans an additional dose of the vaccine eight months after taking the second shot, according to two people who talked to the Associated Press about internal deliberations on condition of anonymity. I will recommend it.
This means that the largest vaccination drive in US history is becoming more widespread.
This move is driven by both highly contagious mutants and preliminary evidence that the vaccine’s protective effect begins to decline within a few months.
New urgency from US authorities reflects how quickly the variants have repelled the country. On July 4, President Joe Biden declared the country proclaiming independence from the virus. However, since then, infectious diseases, hospitalizations and deaths have increased nationwide, overloading emergency rooms in parts of the south and west.
When Pfizer announced plans to apply for booster approval in July, US officials argued that it was too early to know if boosters were needed. Experts worried that a new campaign demanding boosters could disrupt the ongoing campaign to win tens of millions of Americans who are skeptical or hesitant to get their first shot. Did.
Lawrence Gostyn, a public health expert at Georgetown University, said on Tuesday, “We need to ensure that the first vaccination campaign is not compromised while spending a lot of time and effort on the third vaccination. There is. ” “It really is an existential crisis in the United States.”
Gostyn warned that requesting a third dose could discourage those who were skeptical of the effectiveness of the shot in the first place.
Booster shots will begin to be widely administered once by the Food and Drug Administration Formally approved the vaccine, These are currently dispensed under what is known as an emergency use authorization. Full approval of Pfizer Shot is expected in the coming weeks.
U.S. health authorities last week Recommended booster for people with weakened immunity, Cancer patients and organ transplant recipients.
Dr. Francis Collins, director of the National Institutes of Health, said on Sunday that the United States could decide in the coming weeks whether to offer booster shots to other Americans this fall.
They were first received by health care workers, nursing home residents, and other older Americans, some of whom were first vaccinated after the firing was approved in December last year.
According to the Centers for Disease Control and Prevention, more than 198 million Americans have been vaccinated with the COVID-19 vaccine at least once, accounting for 70% of qualified individuals. Just under 60% of Americans over the age of 12 are fully vaccinated.
These numbers are well below what the Biden administration has ever hoped for the United States. At the same time, the variant is actively spreading throughout the unvaccinated community, and the number of “breakthrough infections” in fully vaccinated people is increasing.
Studies show that the vaccine remains highly protective against severe COVID-19, but Israeli results released last month suggest that its effectiveness is diminishing. Its efficacy against symptomatic infections peaked at 96% two months after the study participants received the second dose. After 4 months, it dropped to 90%. By 6 months, it was about 84%.
IsraelThe exclusive control of Pfizer Shot has provided boosters to people over the age of 50 to control delta surges. Researchers are trying to understand how much breakthrough infections are occurring due to weakened or vulnerable immunity to delta variants.
On Tuesday, European health regulators said they were discussing the need for boosters with vaccine developers, but have not made a decision.
On Monday, Pfizer and its partner BioNTech announced that they had submitted data to the FDA to support the approval of booster shots for the general public. According to Pfizer, a small study showed that people who received the third dose had higher levels of antibodies against several versions of the coronavirus, including the delta mutant. .. The company is working on a larger study.
The earliest Americans to receive the Pfizer vaccine (mainly health care workers and residents of nursing homes) are approaching eight months after the second vaccination.
“There are concerns that the effectiveness of the vaccine may begin to decline,” said Collins of NIH. “And Delta is the annoyance we try to deal with. The combination of these two means that boosters may be needed. Starting with healthcare providers and people in nursing homes, Gradually move forward with others.
He said case data for the next few weeks would help the United States make a decision, as the variants only began to hit the country violently in July.
The Pfizer vaccine and the Moderna vaccine are given twice. Authorities also continue to collect information on the One Shot Johnson & Johnson Vaccine, which was approved only in the United States in late February, to determine when to recommend boosters.
The White House said the country would be sufficient to deliver boosters to Americans, even if the United States began sharing more than 110 million doses of vaccine with other countries in the world.
Global health authorities, including the World Health Organization, are calling for postponement of booster shots to wealthier and more vaccinated countries to ensure that the first dose is delivered to people in poorer parts of the world.
COVID Vaccine Booster: US may recommend immediately in 8 months
Source link COVID Vaccine Booster: US may recommend immediately in 8 months