A study from Washington University School of Medicine in St. Louis indicates that the COVID-19 mRNA vaccine may be more effective at preventing infections if doses are given around the middle of the day rather than at other times. The researchers believe circadian rhythm — the natural cycle of physical and other changes our bodies […]
COVID-19 vaccine appears more effective if received around midday (Links to an external site)
![Covid-19 Vaccine graphic](https://internalmedicine.wustl.edu/wp-content/uploads/2023/04/MicrosoftTeams-image-37-300x200.png)