President Donald Trump is expected to propose cutting $800 billion from Medicaid over 10 years in a budget plan to be released Tuesday that would slash spending on anti-poverty and other programs, US media reported.

The plans for the massive cut to Medicaid -- which funds health care for low-income and disabled people -- come as lawmakers from his Republican Party are battling to repeal and replace Obamacare, in which Medicare plays an important role.

Nearly 23,500 suspected cases of cholera have been registered in war-ravaged Yemen in the past three weeks, including 242 deaths, The World Health Organization said Friday.

"The speed of the resurgence of this cholera epidemic is unprecedented," WHO country representative for Yemen Nevio Zagaria told reporters in a conference call, warning that there could be as many as 250,000 cases in the country within six months.

Philippine President Rodrigo Duterte has signed an executive order that will impose a wide-ranging ban on smoking in public, reinforcing some of the toughest anti-tobacco measures in Asia.

Weight-loss balloons swallowed rather than surgically inserted in the stomach were shown to be safe and effective in preliminary trials, according to findings unveiled Thursday at a medical conference.

So-called intragastric balloons have been used for decades to help obese patients shed unwanted kilos. Inflated with water, the devices curb hunger and make it easier to diet by inducing a feeling of fullness.

Hundreds of Palestinians in Israeli jails entered the second month of a hunger strike on Wednesday.

A cholera outbreak in Yemen has killed 209 people in recent weeks with 17,200 suspected cases across the war-torn country, the United Nations children's agency said Wednesday.

UNICEF's Yemen mission said that there had been an "alarming increase" in cholera-related deaths.

A coffee, a caffeinated drink and an energy soda proved a deadly combination for a South Carolina teenager who died within two hours of consuming them, triggering warnings about the risks of caffeine overdose.

Authorities in Sanaa, which is controlled by Shiite rebels, have declared a state of emergency in the Yemeni capital, where a deadly outbreak of cholera has spread rapidly.

The Huthi-run health ministry said it was "unable to contain this disaster" and appealed for international humanitarian assistance to deal with the crisis, in a statement released overnight.

An Ebola outbreak has been declared in northeast Democratic Republic of Congo, the World Health Organization said Friday, after the virus caused three deaths in the area since April 22.

In the battle against jihadists in northern Iraq, the village of Sayramun was recaptured in February but remains as isolated as ever and crucially still has no drinking water.