Anushka Asthana & Sam Rogers | Seattle, WA | July 5

The Observer - Campaigner persuades Washington to alter laws that forced travellers to lie on entry forms

A law that has in effect banned people with HIV from visiting America for two decades is to be overturned after a Briton with the virus accused the US of hypocrisy and discrimination during a major health conference.

Paul Thorn should have spoken at the Pacific health summit in Seattle last month, but was refused entry to the country after admitting his HIV status on his visa-waiver application.

He sent a powerful statement to be read out in his place. The message accused the US of having an HIV policy rooted in fear and said it had no right to call itself a world leader in the fight against the disease.

In the days after the conference Thorn's case was taken up by politicians including US congressman Jim McDermott. He wrote a letter to the Obama administration citing what had happened to Thorn and another case where people were turned back at the Canadian border. "Now is the time to repair our nation's standing as the leader in the treatment of the Aids epidemic," wrote McDermott.

Last week - less than a fortnight later - the US government decided to bring the ban to an end. Its proposal, "to remove HIV as a 'communicable disease of public health significance'," is likely to be in place by the end of the year.