Hospitals in the city, which is controlled by the Shia Houthi rebels, are crowded with cholera patients, the BBC quoted the Red Cross as saying.
The number of suspected cases in the country has tripled in a week to more than 8,500, it said.
Dominik Stillhart, director of operations at the International Committee of the Red Cross, told a news conference in Sanaa on Sunday that there were 115 deaths from cholera nationwide from April 27 to May 13.
"We now are facing a serious outbreak," he said.
Sanaa has been worst hit, followed by the surrounding province of Amanat al-Semah, according to the World Health Organization (WHO).
(This story has not been edited by Social News XYZ staff and is auto-generated from a syndicated feed.)
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Doraiah Chowdary Vundavally is a Software engineer at VTech . He is the news editor of SocialNews.XYZ and Freelance writer-contributes Telugu and English Columns on Films, Politics, and Gossips. He is the primary contributor for South Cinema Section of SocialNews.XYZ. His mission is to help to develop SocialNews.XYZ into a News website that has no bias or judgement towards any.