Scientists describe a infrequent team after vaccination because of Covida

Covid-19 vaccines were highly protective, preventing millions of death. But in a petite number of people, arrows could lead to a constellation of side effects that include fatigue, effort intolerance, brain fog, tinnitus and dizziness, jointly referred to as “vaccination syndrome”, according to a petite novel study.

Some people with this team They seem to show clear biological changesResearch-among them differences in immune cells, awakening of a dormant virus called Epstein-Barr and the maintenance of coronavirus protein in the blood.

The study was published online on Wednesday and has not yet been published in the scientific journal. “I want to emphasize that this is still a work,” said Akiko Iwasaki, an immunologist from the University of Yale, who was working.

“It is not that this study determined what causes the disease,” she said, “but this is the first kind of look at what may happen in these people.”

Independent experts noticed that the discoveries were not decisive. However, the results from the scientific team known for strict work suggest that the team after vaccination deserves further control, they said.

“One of the most significant things is that we pay attention to really cast featherlight on it and try to understand exactly what it is,” said John Whera Director of the Institute of Immunology at the University of Pennsylvania. (Dr. Wherry previously collaborated with the team of Dr. Iwasaki, but did not participate in this work).

Thousands of people said that Covid vaccines hurt them. But the crushed healthcare system in the United States complicates the detection of extraordinary side effects and provided slight clarity in the symptoms that people could experience after terms due to qualifications.

Patchwork has also made it challenging to compare and compare the anecdotes he reported. The novel study is petite, and the condition he studied is “very heterogeneous,” said Dr. Gregory Poland, an editor retired Vaccine magazine and president of the Atria Research Institute.

“Despite these restrictions, they found captivating data that requires further research,” he said. “Much larger studies of very carefully defined and phenotype people must take place.”

In December 2022, to November 2023, Dr. Iwasaki and her team took blood samples from 42 people with a team after vaccination and 22 well people without him. Scientists said that people with the team were generally in a worse health than the average American.

When they analyzed the components of the immune system, people with the team after vaccination had different proportions of some immune cells, compared to controls. It is not clear what these differences can mean; Scientists did not associate them with individual symptoms.

Since the symptoms reported by people with a team after vaccination show significant overlapping to the symptoms of long Covid, scientists also analyzed blood from 134 people with long Covid and 134 well controls.

Like people with long substitutes, people with a team after vaccination showed the reactivation of the Epstein-Barr virus, a virus that may lie dormant in the body and is associated with mononucleosis, multiple sclerosis and other states.

It is believed that some cases of long Covid result from the durability of the coronavirus jumping protein, which causes an increased state of inflammation in the body.

Dr. Iwasaki and her team said that people with a team after vaccination had much higher levels of coronavirus spike protein than all other people with a long Covid-from 26 to 709 days after receiving the vaccine.

Dr. Iwasaki said that MRNA vaccines are unlikely to be a source of protein as long as shots. “Something else allows this kind of behind schedule expression of the spike protein and we don’t really know what it is,” she said.

Dr. Wherry suggested caution during the interpretation of this result. For example, it is possible that some protein may result from undetected coronavirus infections. “I would like to see more data on this subject,” he said.

He added, however, that the lack of clear answers makes it even more significant to study the problem.

“One of the things that may be imprisoned scientists during a pandemic is to see that we should have all the answers, and if we cannot give it a final answer, we should not talk about it,” he said.

“I think it’s a mistake,” he added. “We cannot say with certainty that this will not happen.”