Students carry luggage as they leave as directed by authorities of the University of Lagos to halt the spread of Covid-19 on Campus in Yaba, Lagos, on July 15, 2021. – One of Nigeria’s largest universities, the University of Lagos (UNILAG), on July 15, 2021, sent residential students home and said it would suspend physical attendance of lectures as fears grow over a new wave of coronavirus in Africa’s most populous nation. (Photo by PIUS UTOMI EKPEI / AFP)