die production of books, lesson plans.and brochures tor distribution in schools and among non-health sector groups; and the development of mass media messages for radio and televi- sion. In recent years, increasing attention has also been directed to the preven- tion of diarrhoea, particularly in countries where improved treatment has substantially lowered mortality. In Egypt, UNICEF is leading a major effort to identify key behaviours in selected northern regions, to test com- munications messages designed to modify behaviour, and eventually to integrate these messages into the na- tional CDD effort. Other preventive measures include the promotion of breast-feeding (Angola, Brazil, Cen- tral African Republic, Colombia, Ecuador, Egypt, Honduras, Jordan, Pakistan, Philippines, Zaire); im- proved nutrition (Afghanistan, Gam- bia, Ghana, Mongolia, Nigeria, Pacif- ic Islands, Zaire); improved personal hygiene (Bhutan, Botswana, Jordan, Malaysia, Mongolia, Papua New Guinea, Tanzania); increased access to water and sanitation facilities (Af- ghanistan, Burundi, Egypt, Jordan, Kampuchea, Maldives, Mauritius, Mexico, Nepal, Pakistan, Papua New Guinea, Rwanda, Sao Tome and Prin- cipe, Sudan, West Bank and Gaza, Zimbabwe). In addition to designing interventions in these areas, several country offices are helping govern- ments to evaluate their impact. In the MENA region, emphasis has been placed on the establishment of sentinel surveillance systems to gather information for monitoring and eval- uation (Democratic Yemen, Djibouti, Egypt, Iraq, Lebanon, Sudan, Turkey, Yemen Arab Republic). In Africa, preference has been given to a general improvement in health information systems as well as diarrhoea treatment surveys and comprehensive pro- gramme reviews (Angola, Madagas- car, Malawi, Mauritania, Nigeria, Somalia, Togo, Uganda, Zaire); and in Latin America, a number of coun- tries (including Brazil) have conduct- ed diarrhoea treatment surveys and are continuing to research knowledge, attitudes and practices related to ORT (Guatemala, Honduras, Mexico). In Asia, several countries are monitoring progress towards specific targets in