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. 2011 Apr 15;6(4):e18165. doi: 10.1371/journal.pone.0018165

Table 4. Outcomes for Optimistic (O), Realistic (R) and Pessimistic (P) Scenarios after 10 Years of PrEP Implementation.

Non-Targeted Targeted-by-Age Targeted-by-Gender Targeted-by-Activity
O R P O R P O R P O R P
Overall prevalence* of resistance 2.5% 9.9% 42.3% 2.4% 9.7% 42.4% 2.1% 9.3% 42.3% 1.9% 9.2% 42.5%
Prevalence* of transmitted resistance 0.4% 2.9% 27.1% 0.3% 2.7% 27.0% 0.2% 2.5% 26.9% 0.2% 2.5% 26.9%
Prevalence* of acquired resistance 2.2% 7.0% 15.2% 2.1% 7.0% 15.4% 1.9% 6.8% 15.5% 1.7% 6.6% 15.6%
Cumulative new infections prevented 30.3% 6.6% 0.2% 17.5% 4.5% 0.1% 18.5% 4.6% 0.1% 8.0% 3.0% 0.0%
Resistant cumulative infections 2.2% 8.3% 40.3% 1.5% 7.4% 39.9% 1.3% 7.0% 39.7% 1.3% 7.1% 39.7%
Decline in HIV prevalence 26.2% 6.0% 0.2% 16.6% 4.2% 0.1% 16.2% 4.2% 0.1% 7.1% 2.7% 0.0%
Decline in HIV incidence 32.3% 7.4% 0.2% 25.4% 6.0% 0.1% 20.2% 5.3% 0.1% 8.6% 3.2% 0.0%

*Proportion of cases with drug-resistant infection in the infected population.

Proportion of cumulative new infections with transmitted resistance.