Nashville-Davidson, Tennessee 2021-09-11 08:51:56 –
(NEXSTAR) – COVID-19 vaccine booster shots will be open to the public From September 20thBut that doesn’t mean that everyone is trying to get it right away. The Biden administration has proposed to wait eight months after the second dose before taking the third dose.
The number of delta variants is increasing rapidly (More variants along the way) And why wait when the vaccine is well supplied in the United States?
Dr. Peter Chin Hong, an infectious disease expert at the University of California, San Francisco, says the eight-month waiting period is more related to logistics than anything else.
“The Biden administration was based on the idea that Israeli science showed that immunity began to weaken around six months and that everyone did not want to get it in a hurry at the same time.” Chin-Hong says.
The number “8 months” has no real meaning (except for the lucky number in many Asian cultures, Chin Hong Joke). However, it is important to space the doses.
“If you wait a few months before the last shot, your immune system will generally be better in terms of’memory’,” he explains. “If you take all three shots at the same time, or if they are very close to each other, you may not be doing what you intended. That is, you have been training your immune system for years (virus). Make sure you remember (how to fight). “
The interval between the second and third doses may vary depending on the type of vaccine, added Dr. Bob Wachter, Director of Medicine at UCSF. “For example, if Moderna is holding up better than Pfizer, you probably don’t need a third Moderna shot yet, and there are some questions about whether the original Moderna dose was higher than necessary – (in that case) probably. Boosters may be at lower doses. “
These are questions that are still being organized by the Food and Drug Administration, where scientific advisors will meet on the issue of booster shots on September 17. The FDA may initially turn a third dose of Pfizer into a green light. Moderna and Johnson & Johnson approval is approaching.
Approximately six months after vaccination, Pfizer’s effectiveness declines, and there is sufficient data to aim for booster shots at that time, Wachter says. At this time, we are waiting for the FDA’s approval to be officially approved.
“Choosing 6 months (my personal favorite because it’s easy to remember), 7.5 months or 8.99 months is kind of arbitrary,” says Chin-Hong. The important thing is a few months after the first vaccination.
Consensus on “optimal timing” may emerge in the future, and the answer may not be the same for people of different ages and risk categories.
“There was talk about giving it eight months later. Some said six months later. Dr. Claydunagan of the St. Louis Metropolitan Pandemic Task Force recently said: Nexstar KTVI.. “These are really problems that have been resolved by looking at various sources from countries that started using boosters and additional research done by pharmaceutical companies.”
“Whatever the correct answer, hospitalization and death are still brilliantly avoided by the vaccine, so it’s not urgent to get a booster for the general public in short supply,” says Chin Hong.
On Wednesday, the head of the World Health Organization Prompted to a wealthy country There is ample vaccine supply to suspend booster shots until the end of the year so that doses are available to poor countries.
Why wait 8 months to get a booster shot? Doctors explain Source link Why wait 8 months to get a booster shot? Doctors explain