Malaria estimated at 515 million cases worldwide

Reuters AlertNet article:

"More than half a billion people, nearly double previous estimates, were affected by the deadliest form of malaria in 2002, scientists said on Wednesday. Most were in sub-Saharan Africa but nearly 25 percent occurred in southeast Asia and the Western Pacific. 'The disease burden is 515 million clinical attacks a year on the planet. That is quite substantial,' said Professor Bob Snow of the Kenyan Medical Research Institute in Nairobi, Kenya."