Vaccine safety is a field of research that focuses on studying and monitoring the safety of vaccines that are used to prevent infectious diseases. Researchers in this area investigate the potential risks and side effects of vaccines, as well as their overall safety and effectiveness in preventing diseases. This research helps to ensure that vaccines are safe for use in the general population and that any potential risks are identified and managed appropriately. Vaccine safety research plays a crucial role in promoting public health and ensuring the efficacy of vaccination programs.