Magaret AS, Mujugira A, Hughes JP, Lingappa J, Bukusi EA, DeBruyn G, Delany-Moretlwe S, Fife KH, Gray GE, Kapiga S, Karita E, Mugo NR, Rees H, Ronald A, Vwalika B, Were E, Celum C, Wald A, Partners in Prevention HSV/HIV Transmission Study Team (2016). Effect of Condom Use on Per-act HSV-2 Transmission Risk in HIV-1, HSV-2-discordant Couples. Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 62(4), 456-61. (pubmed) (doi)
The efficacy of condoms for protection against transmission of herpes simplex virus type 2 (HSV-2) has been examined in a variety of populations with different effect measures. Often the efficacy has been assessed as change in hazard of transmission with consistent vs inconsistent use, independent of the number of acts. Condom efficacy has not previously measured on a per-act basis.