Aid agencies fear Haiti cholera moves towards capital
Aid agencies in Haiti say they fear that suspected new cases of cholera might mean the epidemic is moving closer to the capital Port-au-Prince.
Suspected cases are being investigated in three new departments, health officials report.
They said nearly 300 people were now known to have died in the cholera outbreak.
The UN is investigating allegations that excrement from Nepalese peacekeepers caused the epidemic.
The Nepalese camp had become the object of local suspicion partly because cholera is very rare in Haiti but endemic in Nepal.
Tests taken from the peacekeepers' camp and adjacent waters last week were found to be negative, said a spokesperson for UN Secretary-General Ban Ki-moon.
Results from additional tests taken at the base this week were expected on Friday, added the spokesman, Martin Nesirky.
Sarah Jacobs from the aid organisation Save the Children told the BBC that 174 new cases of cholera were being investigated in the area around Arcahaie, a village in the northern Port-au-Prince district and about an hour's drive from the capital.
"These suspected cases are much nearer the capital," Ms Jacobs said.
"So if this is actually confirmed as cholera as we suspect it will be, it means that the cholera has spread, it's that much nearer to the capital. And that's the thing we really need to avoid," she added.
So far a handful of cases have been reported in Port-au-Prince, but they were all people who had contracted the disease in other parts of the country.
The Pan American Health Organization (PAHO) said health workers were now investigating suspected cholera cases in three more departments - Nord, Nordouest and Nordest - in addition to the confirmed cases in Artibonite, Central and Ouest.
At least 292 people had died and more than 4,100 were being treated, PAHO deputy director Jon Kim Andrus said.
But the official case counts almost certainly underestimated the number of people infected, he added.
"We really don't know about communities where diarrhoea cases are occurring but not reaching health centres", Mr Andrus said.
Officials from the World Health Organisation recommended that Haiti should prepare for the disease to spread to Port-au-Prince and warned that the epidemic had not yet reached its peak.Accusations
On Wednesday, UN investigators took samples of waste from a UN base in Mirebalais after allegations that excrement from a newly arrived Nepalese peacekeeping unit had caused the epidemic.
The Associated Press news agency reported that local politicians blame the outbreak on the base, which is perched above the source of the Meille river, a tributary to the Artibonite river.
The Artibonite is regarded to be the source of most cholera infections on Haiti's central plateau.
The UN rejected the accusations, and said the Nepalese unit at the base used sealed septic tanks.
The spread of the disease has alarmed locals in the region, who have vented their fears on the doctors who have arrived to help them.
A treatment centre set up by the international medical charity MSF in Saint-Marc was attacked by angry locals, who said they were afraid that the facility would bring more cases of the disease to their town.
UN peacekeepers were drafted in to sort out the disturbance, and no injuries were reported.
Health experts say they expect the outbreak will soon lessen but the disease will eventually join malaria and tuberculosis in becoming endemic in Haiti.Dominican Republic fears
The public information campaign urges people to boil food and water, avoid raw vegetables and regularly wash with soap.
The health ministry has said it will train 30,000 staff over the next few months to join the anti-cholera campaign.
Special treatment centres have been set up in the worst affected area around the Artibonite River, as well as in Port-au-Prince.
Some 1.3 million survivors of January's devastating earthquake are living in tent camps in and around the capital.
Poor sanitary conditions make the camps and slums vulnerable to cholera, which is caused by bacteria transmitted through contaminated water or food.
Cholera causes diarrhoea and vomiting leading to severe dehydration, and can kill within 24 hours, but is easily treated through rehydration and antibiotics.
The PAHO said there was a "high risk" cholera could also spread to the neighbouring Dominican Republic.
Authorities there had closed popular farmers' markets on the border but have now reopened them after establishing sanitary controls in the region, the Dominican Republic's health minister said.