Latin America's worst cholera epidemic in a century is spreading slowly but steadily along Colombia's Pacific coast, and health officials fear the disease may flourish amid the squalid conditions.

Officials reported 11 new cases of the disease, bringing the number of victims in Colombia to at least 42.It appears none of the reported cases has proven fatal, but residents and medical experts fear unsanitary conditions and lack of government aid may intensify the epidemic.

Cholera has killed more than 900 Peruvians and infected nearly 130,000 since it first appeared in late January. In Ecuador, at least six people have died.