Several countries have authorized the conversion of COVID vaccines to second doses, and several medical studies are underway.
German Chancellor Angela Merkel received the Moderna coronavirus vaccine as her second stroke after receiving the first dose of the AstraZeneca vaccine, a government spokesman said on Tuesday.
The 66-year-old woman received her first dose of the AstraZeneca vaccine in April, more than two weeks after German authorities advised her to use the cavity only for people over 60: older.
Millions of doses of the AstraZeneca vaccine have been safely administered in Europe, but anxiety remains a rare type of blood clot observed in very small numbers of recipients, which means that some people in the early priority groups due to their age or pre-existing health. Conditions prevent it from being obtained, preferring to wait for another vaccine.
Dozens of countries stopped using the AstraZeneca vaccine in March or restricted it to adults. But some of them including Germany – have resumed use, either in whole or in part, after health regulators stated that the benefits of the shot outweighed the risks.
Germany suggested in April that people who received the first shot of the AstraZeneca vaccine should get another shot for their second dose. Several other European countries have made similar decisions.
Following the start of the stuttering, the spread of vaccines in Germany has accelerated in recent weeks. As of Tuesday, every two or 51.2 percent of the population had received their first dose.
Some experts believe that changing the second dose of COVID vaccine may increase immunity և Several medical studies are underway.
A small UK study of two small doses of the vaccine found that people who received the Pfizer vaccine followed by a dose of AstraZeneca or vice versa were more likely to report mild or moderate general vaccination symptoms than if they received two doses of the same type.
Novonax, a developer of the coronavirus vaccine, announced on May 21 that it would be testing a blend of COVID-19 vaccines to test an additional dose of the vaccine from another manufacturer as a booster. The trial is set to begin in June in the United Kingdom.
At the same time, Canada, which is facing a shortage of supplies, has recommended that Pfizer և Moderna vaccines be substituted.
The government said on Monday that Pfizer’s weekly delivery of 2.4 million doses had been delayed, leaving the provinces’s Pfizer appointments to Moderna և urging people to cancel their strikes, Canadian National Observer reports,
Ontario officials have informed residents that they can receive a variety of mRNA vaccines, an advanced technology used by Pfizer-BioNTech և Moderna staff.
“We want you to be fully protected as soon as possible,” the National Observer quoted Dr. David Williams as saying.
“The vaccines are safe to mix,” he said.
Officials in Alberta, Manitoba and Quebec have urged citizens to do the same.
“Our public health says you can have the same or a mix, the benefits far outweigh the risks,” Quebec Prime Minister Francois Legol said on Monday.