Japan plans to host a conference in early December to promote cooperation in fighting infectious diseases that have ravaged many developing countries, government sources said Thursday.

The sources said the conference, which will focus on AIDS, tuberculosis and malaria, will be attended by officials of aid-donating countries, developing countries — with heavy participation from Africa — and international organizations, including the World Health Organization.

Representatives from the pharmaceutical industry and nongovernmental organizations who are engaged in health-care activities in developing countries will also be invited.