The threat of HIV/AIDS in Japan, especially among young people, is far more alarming than the government may want to think, an expert warned during a symposium Friday.

Kunio Kitamura, director of the Japan Family Planning Association, cited the behavioral patterns of youths and a lack of sex education as the main factors behind this assertion.

Japan is one of the few developed nations where both the rate of teenage abortions and the number of people infected by sexually transmitted diseases are on the rise, he said on the third and final day of a symposium on HIV/AIDS held at the United Nations University in Tokyo's Shibuya Ward.