<p><br /> Medical workers in quake-hit Haiti are fighting to stem a cholera epidemic that has killed nearly 200 people and sickened more than 2,000.<br /> </p><p><br /> Although the main outbreak area is north of Port-au-Prince, which bore the brunt of the January 12 earthquake, humanitarian agencies are on high alert to prevent the disease from spreading to crowded survivors' camps in the capital.<br /> </p><p><br /> The cholera epidemic was the worst medical emergency to strike the poor, disaster-prone Caribbean nation since the devastating earthquake that killed up to 300,000 people.<br /> </p><p><br /> It was also the first cholera epidemic in Haiti in a century, the World Health Organization said. But no confirmed cases were reported in Haiti's rubble-strewn capital, where 1.3 million quake homeless are living in tent cities.<br /> </p><p><br /> Health teams were closely monitoring the survivor camps and oral rehydration liquids were being prepared for quick use.<br /> </p>
