This photo taken on June 7 shows Filipina girl Alyson Jacalan, 4, who stayed home with her sister Yohan, 9, for three months due to fears about the COVID-19 coronavirus outbreak, swimming in the pool at their apartment after the lockdown period in Bangkok. The sisters (also inset), who moved to Thailand in 2017, are among more than a billion children worldwide who have seen their school and home life upended by the pandemic, according to a UN agency.