Almost 23,500 suspected cases of cholera have been registered in war-ravaged Yemen in the past three weeks, the World Health Organization said, as the death toll of the outbreak climbed to at least 242.
According to World Health Organization, more than 240 people have died from cholera in just the last three weeks, out of a total of 23,400 infections.
The WHO has recorded another 29,300 suspected cases of cholera in 19 provinces across the war-torn country from April 27 to Sunday, it said on Twitter late Sunday.
More than 10,000 people have been killed and millions displaced in more than two years of war, which has also destroyed much of the country's infrastructure.
Zagaria warned that there could be as many as 250,000 cases in the country within six months.
According to United Nations sources, only a few medical facilities are still functioning and two-thirds of the population are without access to safe drinking water, a major reason for the outbreak of cholera, an acute diarrhoeal disease that is caused particularly by contaminated water, poor hygienic conditions and malnutrition.
At the same time, he said, lacking electricity meant water pumping stations were only functioning in an intermittent way, and the sewer systems were damaged.
Zagaria added that numerous remaining health workers in the country had not been paid for seven months.
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Last week, a state of emergency was declared in the rebel-held capital Sana'a after a large number of cholera cases were detected in the city.
"Cholera continues to spread in Yemen", it said.
More than half of the country's medical facilities no longer function, the World Health Organization said.
On Saturday, worldwide medical organization Médecins Sans Frontières (MSF) warned that the outbreak is threatening to get out of control.
Reining in the disease is particularly complicated in Yemen, where two years of devastating war between the Houthi rebels and government forces backed by a Saudi-led Arab military coalition has left more than half the country's medical facilities out of service.
It also supports nationwide immunisation campaigns and provides basic vaccines to cover all governorates.
More than 200 have already died, and around 7.6 million people live in the areas affected.