TANZANIA’S President Benjamim Mkapa has urged Tanzanians to change their sexual behaviour to curb the spread of Aids in the new year. An estimated 1.75 million people, almost 6% of the country’s population, are infected with HIV, which causes the disease. An estimated 600 000 Tanzanian children had lost one or both parents to Aids by the end of 1999, Mkapa said. AFP