During the colonial period sexually transmitted infections (STIs) came to be recognised as a major public health problem in African cities. Thus, STI control and urban modernisation became deeply entangled as authorities redrew spatial and social boundaries to manage populations and their cross-cultural interaction. Public health measures, urban planning and policing were part of a coordinated effort to neutralise the potential impact of rapidly growing African urban migration on the Belgian Congo’s ‘model’ capital Leopoldville. While STI control was facilitated by new drugs (arsenicals, sulfonamides and antibiotics) to treat syphilis, chancroid, gonorrhoea and chlamydia (bacterial STIs), the effects of the 1929 economic crisis and urban social change illustrated the limits of colonial authority. Redesigning urban spaces and repressive measures to curb polygyny and prostitution operated in a parallel fashion with the expansion of health coverage, new treatments and awareness campaigns. To gain a better understanding of the evolution of STI incidence among African urban populations during the colonial period between 1910 and 1960, extensive archival records and secondary literature were consulted to assess the interplay between improved screening, diagnostic and therapeutic methods with demographic and social change. They show that STI rates, probably peaked during the pre-1929 period and apart from a short period in the early 1930s associated with mass screening, declined until becoming residual in the 1950s. Reflecting upon sanitary interventions and their broader dimensions, the article analyses the evolution of treatment regimes and their impact in the changing urban organisation and environment of the colony’s capital.

This article explores the African Mental Health Action Group (AMHAG), one of the earliest examples of the World Health Organization’s (WHO) attempts to promote ‘ownership’ over development through the South–South cooperation envisaged in Technical Cooperation in Developing Countries. Formed in 1978, the AMHAG was intended to guide national and regional policy on mental health, while also fostering national and collective self-reliance. For a short period, between the late 1970s and the early 1990s, it was central to the WHO’s strategy for promoting policies of mental health in primary healthcare in Africa. It was a largely ineffective tool, with national governments having different opinions on the value of mental health, and poor coordination between AMHAG countries. Approaching the AMHAG as a regional project and transnational network, however, the article provides explores the importance of regions and regionalism in international health cooperation, as well as the inequities of participation in health development. Drawing on WHO archival material spanning over twenty countries and two national liberation movements, it argues that participating countries were differently positioned not only to navigate relationships between countries, but also to contend with the shifting landscape of international assistance, as well as – for some – contexts of war, violence and political and economic instability. The article not only serves as a case study of power imbalances in a failed development initiative, but also sheds light on the WHO’s engagement with mental health during a period that historians of psychiatry in Africa have tended to overlook.