Vaccine dose adjustment tests that are underway are known to cause fatigue and headaches at an early stage. However, it is temporary. Several people who received the first dose of AstraZeneca received the Pfizer vaccine four weeks later. Researchers at the University of Oxford told The Lancet Medical Journal that they had experienced short-term side effects from receiving a separate vaccine.
Researchers and public health officials say the test is for economically backward countries. Experiments are being carried out using two different doses to try to figure out how to deal with the vaccine deficiency. No serious illness or death has been reported so far.
Incidentally, the AstraZeneca vaccine was banned in France when. Many adults who took the first dose of AstraZeneca did not receive the second dose. The second dose of Pfizer and BioNTech SE is then applied to their body.
Matthew Snape, a professor of pediatrics and vaccineology at Oxford, is leading the study. “It’s a really worrying search,” he said. Whether this is related to an improved immune response, we do not yet know; We hope to get the final results in a few weeks. ”