The United States government announced that it would not change the plan to inoculate the vaccine twice, and in the discussion that “many people should be vaccinated once each”

Initially, new coronavirus vaccines from Pfizer and Moderna, which have begun to be inoculated in the United States and the United Kingdom, are inoculated twice within a specified time period, however, due to concerns about recurrence of pandemics and the unexpected delay in the spread of vaccines, he said, “Should we cut the vaccine dose in half and get more people to inoculate it?”opinionIt is also outside. In response to this opinion, the United States Food and Drug Administration (FDA) issued a statement on January 4, 2021 that “there are no plans to change the prescribed vaccination schedule.”

FDA Statement on Following Authorized Dosing Schedules for COVID-19 Vaccines | FDA
https://www.fda.gov/news-events/press-announcements/fda-statement-following-authorized-dosing-schedules-covid-19-vaccines

FDA Tells U.S. Healthcare Providers Not to Modify COVID-19 Vaccine Dose Schedule – The Verge
https://www.theverge.com/2021/1/5/22214865/covid-vaccine-schedule-doses-fda-uk

New corona virus vaccine jointly developed by Pfizer and BioN TechBNT162b2And Moderna’s “MRNA-1273It is said that it is necessary to inoculate twice with an interval of 21 days and 28 days from the first inoculation, respectively.

However, due to the lack of vaccine safety and delays in vaccination plans, the governments of several countries have decided to change their vaccination schedules. On January 4, 2021, the Danish government “approved to delay the time until the second vaccination up to 6 weeks after the first vaccination “.PresentationDid. This measure is intended for both Physer’s vaccine, which is administered at 3-week intervals, and Modelna’s vaccine, which is administered at 4-week intervals.

Following the Danish government decisionGermanyWhenIrelandIt is showing similar movements, and the UK has decided to leave an interval of “up to 12 weeks”.recognitionDid.

Vaccine developers have voiced opposition to plans to delay the second vaccination beyond the prescribed procedure. Pfizer and BioNTech issued a statement on January 4 that “the safety and efficacy of the vaccines for different times have not been verified. inoculation”.Presentation.. He emphasized that “there is no evidence that there is a preventive effect even if the interval is longer than the specified period.”

In response to these discussions, the FDA issued a statement on January 4 that it would “adhere to the approved dosing schedule,” clearly stating that there were no plans to change the prescribed vaccination procedures. ..

In a statement, FDA Secretary Stephen Hahn and Center for Biological Research and Evaluation Director Peter Marks said: “The debate on changes to dosing schedules or dosages will, We know it is based in the belief that it will be possible to reach people, but changes to plans that are not supported by adequate scientific evidence will ultimately be against public health. May be effective Until the vaccine manufacturer obtains Scientific data to support the plan change, it is strongly recommended that medical providers continue to inoculate each new coronavirus vaccine according to the FDA-approved dosing schedule. I am going to. “

In a foreign media statement, The Verge said: “Delaying a second vaccination can result in partial immunity. Furthermore, if a person who has been vaccinated only once becomes infected with the virus, there is also a risk that the surviving virus mute, “suggesting the risk that the new corona virus will become resistant to the vaccine.

Experts have also said that changing the vaccination plan due to the morning decree change would damage public confidence. Natalie Dean, assistant professor of medical statistics at the University of Florida, told Twitter: “For the moment, I will continue to support a consistent position on changing vaccination strategies at the last minute. We must not underestimate the importance of public trust in the decision-making process for success, “he said in a negative view of the plan change.