Comment on "Hepatitis C and the Sex Trade".

"Competing Interests Julio S. Montaner has received limited unrestricted funding, paid to his institution, from Abbvie, Bristol-Myers Squibb, Gilead Sciences, Janssen, Merck, and ViiV Healthcare. All other authors report no potential conflicts."

"This research was supported by operating grants from the US National Institutes of Health (R01DA028648), the Canadian Institutes of Health Research (HHP-98835), the Canadian Institutes of Health Research/Public Health Agency of Canada (HEB-330155), and MacAIDS. Kate Shannon is partially supported by a Canada Research Chair in Global Sexual Health and HIV/AIDS and Michael Smith Foundation for Health Research. Julio S. Montaner is supported by grants paid to his institution by the British Columbia Ministry of Health and by the US National Institutes of Health (R01DA036307). M. Eugenia Socías is supported by a Michael Smith Foundation for Health Research Post-Doctoral Fellowship Award."