Armed conflict has continued to intensify, affecting 18 of Yemen's 22 governorates. More than 150,000 people have been displaced and food insecurity is rising.
Food shortage has been aggravated by the presence of some 200,000 refugees who had fled attacks by Boko Haram and other militants.
As of the end of March, the Ministry of Health had confirmed at least 11,721 cases of cholera, more than a 300 per cent increase from the same period last year.
96 new cholera cases were reported this week, as the outbreak continues to spread to new areas. The response is ongoing, with 129,000 people vaccinated in the first round of a two-round campaign.