Ms. Leila E. Martinez, a Puerto Rican math teacher at Iroquois High School, heads back to school while their niece Jodalys Vargas Aquino attends online class and her elder daughter Leilani Rodriguez Martinez watches TV in Louisville, Kentucky, U.S. January 21, 2022, after students have gone remote for a second week as cases of the Omicron coronavirus variant continue to surge and the untenable staffing numbers in schools. REUTERS/Amira Karaoud