Primary Immunodeficiency Awareness Month is a month-long health observance recognized throughout April each year.
Dates by year
Apr 1–30, 2026
Apr 1–30, 2027
Apr 1–30, 2028
Apr 1–30, 2029
Apr 1–30, 2030
Recognized throughout April each year.
Primary Immunodeficiency Awareness Month
Apr 1–30, 2026