NGOs working with refugees abroad say they're extremely concerned about an outbreak of Covid-19 in refugee camps. Moria is Europe's largest refugee camp, and home to some 20,000 people.
The refugee camp was built on the Greek island of Lesbos to provide shelter to 3,000 people and has been expanded to fit 4,000, but some 14,000 people live on the fringes of the camp, while 6,000 live in the official camp.
In such overcrowded conditions, the pressure on sanitation services is immense. According to Dr Claire Dunne, who recently returned from Lesbos after spending ten months there, up to 242 people can share a single shower, and 167 people are using one toilet.