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Table 2 Effect on incident cases in Malawi following use of selected prevention interventions

From: Selecting HIV infection prevention interventions in the mature HIV epidemic in Malawi using the mode of transmission model

Intervention to reduce new infections from 94,454 number of new infections per year averted percent reduction in new infections
1 100% condoms for discordant single partner couples 34,673 37%
2 100% multiple concurrent (casual and commercial) partnerships become monogamous 16,668 18%
3 100% Condom use when STI 13,570 14%
4 Double condom use in high risk sex from 43.1% to 86.2% 11,501 12%
5 20% sexually active 15-24 year olds abstain 7,932 8%
6 Treble circumcision from 21% to 63% 7,512 8%
7 Improve STI services to reduce STIs by half 6,785 7%
8 Double circumcision from 21% to 42% 3,765 4%
9 All bar girls use condoms all the time 1,731 2%
Multiple interventions to reduce new infections from 94,454
10 100% condoms for discordant couples and 100% monogamy (1 & 2 combined) 93,858 99%
11 50% condoms for discordant couples and 50% multiple partnerships become monogamous 33,986 36%