Oscar Corrons

This study was supported by the European Commission grant MOTIF (Microbicide Optimization Through Innovative Formulation for Vaginal and Rectal Delivery), FP7-HEALTH-2012-305316 http://cordis.europa.eu/result/rcn/158530_en.html. Beneficiaries of MOTIF include the University of Aberdeen, the University of Siena, Microbiotec srl, Imperial College, and King’s College London. MICROBIOTEC srl provided support in the form of a salary for MAS, but did not have any additional role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript.