Lake County briefs

Antioch business expo:The Antioch Chamber of Commerce is sponsoring the "Who Let the Dogs In," business expo Thursday, Feb. 18, from 5 to 8 p.m. at St. Peter's gymnasium, 557 Lake St., Antioch. There is complimentary food and drinks along with a cash bar. The grand prize raffle winner will receive one of the painted dogs from the village's first public art program. For more details, call the chamber at (847) 395-2233.Mosaic fundraiser in Antioch:Antioch Community High School and its booster club Sequoit Pride will host Mosaic on March 5 from 6 to 9 p.m. in the high school's commons. The event showcases the talents of ACHS students and features a spaghetti dinner, auction, student performances and sales of student-produced products. Proceeds will benefit the Open Arms Mission and ACHS programs. Tickets are $10. For more details, call (847) 395-1421 or email mosaic@sequoits.com.Preschool planned:Officials with St. Mary of the Annunciation School near Mundelein plan to start preschool programs this fall. Programs for 3- and 4-year-olds will be offered, according to a news release. For more information, call (847) 233-4021 or visit stmaryfc.org.