Why do I need to get a flu vaccine every year
Flu viruses change from year to year. The immunity that is built up from having the flu caused by one flu virus strain doesn't always provide protection against newer strains of the flu.
Please note the Imperial County Public Health Department will be open for appointments only. Department staff will be available to provide assistance by phone to members of the community who have questions related to any of the Department's essential services.
Flu viruses change from year to year. The immunity that is built up from having the flu caused by one flu virus strain doesn't always provide protection against newer strains of the flu.