Gareth Thomas, the Welsh former professional rugby player, and ViiV Healthcare have announced the launch of the Tackle HIV campaign, an initiative aimed at improving levels of public understanding of HIV and breaking the stigma around it.Results of the recent Tackle HIV survey, conducted amongst 4,000 adults in the UK, demonstrated that misunderstanding and stigma continue to exist despite advances in science and medicine.61% of people surveyed said if they found out a potential partner was HIV positive they would or might end the relationship, the main reason given being worried about contracting HIV themselves (81%).