Closing schools has been shown to reduce Asian influenza morbidity by 90% in the 1957-58 epidemic, and by up to 50% for influenza control in the United States, in 2004-2008. Many countries managed to slow the spread of infection through school closures during the H1N1 flu pandemic in 2009.
Kufungwa kwa shule zilionyeshwa kupunguza kuwepo kwa ugonjwa kutoka homa ya mafua ya Asia kwa 90% katika mkurupuko wa 1957-58, na hadi 50% katika udhibiti wa homa ya mafua Marekani, 2004-2008. Nchi nyingi zimefanikiwa kupunguza kuenea kwa maambukizi kupitia shule kufungwa katika janga la Homa ya mafua ya H1N1 ya 2009.