• The Riverhead community blood drive will be held at the Riverhead Fire Department, 540 Roanoke Ave., in the second floor banquet room, Tuesday, Sept. 27, 1-7 p.m. Walk-ins are welcome. Call Lauren at 369-9136.
• Cornell Cooperative Extension will host a food allergy training course at its education center, 423 Griffing Ave., Friday, Sept. 23, 2-5 p.m. Participants will learn the difference between a food allergy and a food reaction. The course is ideal for professionals who work with children. The fee is $20. Call 727-7850, ext. 355.
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