UN : Not a single country in the world is unaffected by the AIDS epidemic and 16,000 new people are infected by the virus everyday, executive director of UNAIDS Peter Piot has said. AIDS is not just a medical problem but its economic and social costs are telling on societies across the world, Mr Poit said. He was on his first official visit to India. He lauded the efforts of NACO in India which has extended the AIDS campaign beyond the big cities and into districts.