![Public health workers spray insecticide amid fears of a new cholera outbreak in Sanaa, Yemen, June 7, 2018. Yemen’s rainy season will likely trigger another wave of cholera, putting millions at risk in the war-torn country, which is still reeling from one of the world’s worst outbreaks of the killer disease, scientists warned in May. (Photo/Agencies)](http://www.ecns.cn/hd/2018/06/08/165eb8715ca74a62aca72f5a9c09889e.jpg)
Public health workers spray insecticide amid fears of a new cholera outbreak in Sanaa, Yemen, June 7, 2018. Yemen’s rainy season will likely trigger another wave of cholera, putting millions at risk in the war-torn country, which is still reeling from one of the world’s worst outbreaks of the killer disease, scientists warned in May. (Photo/Agencies)
![Public health workers spray insecticide amid fears of a new cholera outbreak in Sanaa, Yemen, June 7, 2018. Yemen’s rainy season will likely trigger another wave of cholera, putting millions at risk in the war-torn country, which is still reeling from one of the world’s worst outbreaks of the killer disease, scientists warned in May. (Photo/Agencies)](http://www.ecns.cn/hd/2018/06/08/34f68bcf7ef9435d90d4095b6710aa3f.jpg)
Public health workers spray insecticide amid fears of a new cholera outbreak in Sanaa, Yemen, June 7, 2018. Yemen’s rainy season will likely trigger another wave of cholera, putting millions at risk in the war-torn country, which is still reeling from one of the world’s worst outbreaks of the killer disease, scientists warned in May. (Photo/Agencies)
![Public health workers spray insecticide amid fears of a new cholera outbreak in Sanaa, Yemen, June 7, 2018. Yemen’s rainy season will likely trigger another wave of cholera, putting millions at risk in the war-torn country, which is still reeling from one of the world’s worst outbreaks of the killer disease, scientists warned in May. (Photo/Agencies)](http://www.ecns.cn/hd/2018/06/08/accb643be54948b69604e87880d3ae7e.jpg)
Public health workers spray insecticide amid fears of a new cholera outbreak in Sanaa, Yemen, June 7, 2018. Yemen’s rainy season will likely trigger another wave of cholera, putting millions at risk in the war-torn country, which is still reeling from one of the world’s worst outbreaks of the killer disease, scientists warned in May. (Photo/Agencies)