Researchers looked at 145 different studies from several countries, including the United States, China, and Thailand. They wanted to see if getting one type of vaccine influenced a person's willingness to get another. Specifically, they looked at how past experiences with flu shots related to future choices regarding COVID-19 vaccines.
The data showed that people who had received flu vaccines in the past were more likely to be willing to get a COVID-19 vaccine. Similarly, those who had already received a COVID-19 vaccine showed a much higher willingness and likelihood to receive flu shots in the future. These findings suggest that the two types of vaccinations may be linked in how people perceive them.
Because this was a review of existing studies rather than a new clinical trial, it shows a link between past actions and future feelings. It does not prove that one vaccine causes a change in behavior directly. However, the results suggest that health programs could combine flu and COVID-19 vaccine information to help more people get protected against both illnesses.
