4. Cost–Effective Strategies for the Excess Burden of Disease in Developing Countries

Table 4.1: Epidemic Profiles

Epidemic Profiles
	Highest Prevalence in a key population (sex workers, drug injectors, MSMs)	Prevalence in the general population	WHO Regions
Low level	< 5%	< 1%	Middle East and North Africa
Concentrated	> 5%	< 1%	East Asia and the Pacific, Europe and Central Asia, Latin America and the Caribbean, South Asia
Generalized low	≥ 5%	1-10%	Sub-Saharan Africa
Generalized high	≥ 5%	≥ 10%	Sub-Saharan Africa

Source: UNAIDS 1997.