Gambia probes suspected paracetamol syrup link to dozens of child deaths

"Dozens of children have died in the last three months," Bittaye told Reuters by phone. "Autopsies suggest the possibility of paracetamol."

'Quite unusual'

World Health Organisation officials said the evidence points not to paracetomol but to an infectious origin such as polluted water, though there are many unanswered questions.

"It is quite unusual because it is confined to only one age group. Normally you see different age groups affected. That is why we are trying to investigate everything," said Sharmila Lareef-Jah, a disease prevention specialist at the WHO in Gambia.

Samples of the drugs that the children took have been sent to toxicology labs in Senegal and Ghana for testing. Results are expected early next week, Lareef-Jah said.

In a statement last week, health authorities said that this kind of illness often has more than one cause.

E. coli bacteria could also be a possible factor as heavy rains have caused flooding in Gambia, and across much of West Africa, in recent weeks. The unpaved streets of the capital Banjul and surrounding towns have been overwhelmed.

The use of open pit latrines and open drinking wells in urban centers can lead to the contamination of drinking water and contribute to a spread in waterborne illnesses like E. coli, health workers said.

Whatever the cause, health authorities have so far been unable to save the vast majority of patients.

"Most countries don't have the facilities to be able to take care of children who have that stage of illness," said Lareef-Jah. "Even in the best centres the mortality rate is usually high.