Catching the most dangerous strain of E. coli could increase the risk of high blood pressure and heart problems years later, say researchers.
A Canadian study of almost 2,000 who fell ill during an outbreak of E. coli O157 found heart attack risk doubled.
Indonesia has demanded an inquiry into reports that a maid working in Saudi Arabia was killed by her employers and her body dumped on a roadside.
President Susilo Bambang Yudhoyono said a team had been sent to the Saudi town of Abha to investigate reports of the murder of 36-year-old Kikim Komalasari.
The response to a cholera outbreak in Haiti that has killed nearly 1,200 people has been "inadequate", a major medical charity says.
Medecins Sans Frontieres (MSF) said despite the huge aid agency presence in Haiti, urgent needs were not being met.
No rescue mission will be launched until at least Sunday morning at the New Zealand coal mine where 29 men are missing after a blast, officials say.
Police say they "remain positive" that the men will be found alive, but the fear of a second explosion is preventing rescuers from entering.
Madagascan troops have stormed an army barracks occupied by rebel soldiers, ending a three-day mutiny.
Gunshots rang out shortly before reports emerged that the rebels had given themselves up for arrest.
David Cameron has insisted that UK combat troops will be out of Afghanistan by 2015.
The prime minister told the Nato summit in Lisbon, where the 28 leaders agreed a strategy to transfer military control to Afghanistan by 2014, that the UK deadline was "firm".
Russia has agreed to co-operate on Nato's programme to defend against ballistic missile attacks, Nato's chief has said.
Anders Fogh Rasmussen said at a Nato summit in Lisbon that the two sides had agreed in writing that they no longer posed a threat to one another.
