Immune Responses to Influenza Vaccinations and Viruses Among Health Care Personnel
This is an investigator-initiated 10 year long open cohort observational study, aiming to increase the understanding of the humoral and cellular immunological mechanisms of vaccination against influenza, including effects of repeated vaccination, the duration of protection, immunity against circulating viruses, as well as factors affecting the immunological responses and immunity against other vaccine preventable infectious diseases among health care personnel.
• Members of health care or laboratory personnel in HUS having decided to take the seasonal influenza vaccination by the routine occupational health care service
• General good health as established by or volunteer's own statement
• Written informed consent
• Presumably able and willing to participate in the study during the starting influenza season