Table 1. In-depth interview participants stratified by group and by country (June 2017 to September 2018).

	HIV-negative women	Male partners of HIV-negative women*	Healthcare workers	Policymakers
Malawi	20	7	10	10
Zambia	19	7	9	8
Total	39	14	19	18

* Male partners recruited only with permission of the participating index HIV-negative women.