The public is encouraged to participate. You, your family and your business can do so by sending thank you or Christmas cards to area health care facilities and sharing a thank you video created for the event. The video was posted this week at facebook.com/unitedwaynesd. Posting a photo on social media with a thank you sign or message and the hashtag #healthcareheroes is another way to show support. Masks are strongly encouraged in photos as a show of respect and support. Kids in public elementary schools made thank you cards and pictures that are being delivered this week to hospitals, clinics and nursing homes.