Brief Report: HIV Prevention by Australian Gay and Bisexual Men With Casual Partners: The Emergence of Undetectable Viral Load as One of a Range of Risk Reduction Strategies

J Acquir Immune Defic Syndr. 2015 Dec 15;70(5):545-8. doi: 10.1097/QAI.0000000000000787.


We analyzed the HIV risk reduction strategies (RRS) used by Australian gay and bisexual men with casual partners. Among 1346 men who reported any condomless anal intercourse with casual partners, 75% frequently practiced at least one RRS. The most common RRS was serosorting, frequently practiced by 55% of HIV-positive and 47% of HIV-negative participants. Condoms were frequently (but inconsistently) used by 17% of HIV-positive, 41% of HIV-negative, and 30% of untested participants. Relying on an undetectable viral load was frequently practiced by 58% of HIV-positive participants. Strategic positioning, withdrawal, and non-HIV-positive men taking antiretroviral medication were less common strategies.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-HIV Agents / therapeutic use*
  • Australia / epidemiology
  • Bisexuality*
  • Condoms
  • HIV Infections / drug therapy*
  • HIV Infections / epidemiology
  • HIV Infections / prevention & control*
  • Homosexuality, Male*
  • Humans
  • Male
  • Risk Factors
  • Viral Load*


  • Anti-HIV Agents