Yemen is struggling to cope with a cholera outbreak which has killed at least 115 people over the past two weeks. Hospital corridors are lined with sick children and elderly patients, as there aren't enough beds to accommodate them. Authorities have declared a state of emergency over the outbreak and called for international help to avert disaster.

Yemen cholera
Young Yemenis suspected of being infected with cholera lie on the floor at a hospital in SanaaMohammed Huwais/AFP

The Red Cross says the number of suspected cases in Yemen has tripled over the past week to more than 8,500.

The outbreak is exacerbated by a civil war that has raged for more than two years, killing at least 10,000 people and displaced millions. The conflict between the Houthi rebels and the government escalated in March 2015 when Saudi Arabia started extending support to the Yemeni government. The conflict is characterised as a proxy war between Sunni forces in Saudi Arabia and Shia Muslims in Iran.

Only a few medical facilities are still functioning and two-thirds of the population are without access to safe drinking water, the United Nations has said. Some 17 million of Yemen's 26 million people lack sufficient food and at least three million malnourished children are in "grave peril", the UN has also said.

Yemen cholera
A man infected with cholera lies on a bed at a hospital in SanaaMohamed al-Sayaghi/Reuters
Yemen cholera
A Yemeni child suspected of being infected with cholera receives treatment at a hospital in SanaaMohammed Huwais/AFP
Yemen cholera
A child suspected of being infected with cholera receives treatment at a hospital in SanaaMohammed Huwais/AFP
Yemen cholera
A girl infected with cholera lies on the floor in a hospital room in the Red Sea port city of HodeidahAbduljabbar Zeyad/Reuters
Yemen cholera
Men infected with cholera lie on beds at a hospital in SanaaMohamed al-Sayaghi/Reuters
Yemen cholera
Relatives sit next to a sick man waiting to be admitted to a hospital in SanaaKhaled Abdullah/Reuters
Yemen cholera
Women help a young relative infected with cholera at a hospital in SanaaKhaled Abdullah/Reuters
Yemen cholera
A child suspected of being infected with cholera receives treatment at a hospital in SanaaMohammed Huwais/AFP
Yemen cholera
A girl is treated for cholera at a hospital in SanaaMohammed Huwais/AFP
Yemen cholera
A Yemeni man is treated in a corridor at a hospital in SanaaMohammed Huwais/AFP
Yemen cholera
Suspected cholera patients lie on the floor at a hospital in SanaaMohammed Huwais/AFP
Yemen cholera
Rubbish bags pile up on a street during a strike by refuse collectorsKhaled Abdullah/Reuters

Cholera is caused by the bacterium Vibrio cholerae, which causes the cells lining the intestine to produce large amounts of fluid, leading to violent diarrhoea and vomiting. The disease is spread via food or water contaminated with the faeces or vomit of someone carrying the disease, a particular risk in overcrowded areas such as refugee camps. Its victims can die an agonising death. You can help by donating to Oxfam, the Red Cross or the UN refugee agency.