The conflict has killed more than 10,000 people and displaced 2 millions, pushing the country to the verge of starvation.
The coalition has intervened in the Yemeni conflict in March 2015 to roll back Iranian-aligned Houthi rebels and backed internationally recognized President Abd-Rabbu Mansour Hadi Houthis forced into exile in Saudi Arabia.
The King Salman Center for Relief and Humanitarian Aid has established more than 250 projects in Yemen at a cost of $895 million, its general supervisor, Dr. Abdullah Al-Rabeeah, said on Saturday.
While cholera can kill a person within hours, under most circumstances, it is a preventable and treatable disease, given enough medical attention. Six months after, that number has now risen to 1 million people, with a new wave of cholera expected in March or April next year.
It's probably unavoidable. We need to be ready to face another big epidemic.The places where the war is active are the ones most at risk for increase of disease.
Yemen's troubles have been aggravated by the Saudi-led coalition's blockade of its ports, which has resulted in a fuel shortage and a spike in food prices.
Marc Poncin, the emergency coordinator for Doctors Without Borders (MSF) in Yemen , told AFP that cholera mortality rates had been on a downtrend in recent months but that the disease was far from vanquished.
"This is the world's worst recorded outbreak, a man-made tragedy driven by more than a thousand days of a relentless and ruthless war", Stevenson added.
Foreign Affairs Secretary Alan Peter Cayetano said Manila hopes for a solution in the Yemen conflict, noting that the Philippine government is "strongly concerned" over the attacks against Riyadh.
Experts of the global red cross in the Arab Republic of Yemen recorded more than a million cases in which it is assumed the people have been infected with the virus of cholera.
Yemen has been under air and ground attack by Saudi Arabia and its allies since March 2015, a conflict that has so far killed more than 10,000 people, more than half of them are civilians, according to worldwide aid agencies.
A view of cranes, damaged by air strikes, at the container terminal of the Red Sea port of Hodeidah, Yemen November 30, 2017.