Swaziland and Lesotho are among the countries with the highest HIV prevalence in the world.
Recent nationally representative estimates reveal an adult HIV prevalence equal to 26% in Swaziland1 and 23.2% in Lesotho2.
These countries have two other main features in common: they are small countries bordering South Africa and, during the past decades, they were exposed to massive recruitment efforts to work in South African mines. For more than a century, about 60 percent of those employed in the mining sector in the Republic of South Africa were migrant workers from Lesotho and Swaziland3.
In a recent paper4 with Lucia Corno, we started from this set of facts and investigated whether the massive percentage of migrant workers employed in the South Africa’s mining industry for a long period might be one of the main explanations for the high HIV prevalence observed in Swaziland and Lesotho.