PlusNews, the United Nations HIV and AIDS news service, has published a series of features on HIV and immigration, which looks at HIV bans on immigration as well as the stumbling blocks for immigrants trying to access treatment.

These are some of the stories:

In the land of the free - HIV restrictions in the US

Life, liberty and the pursuit of happiness are constitutionally guaranteed rights in the United States, but when immigrants go searching for Lady Liberty, HIV status may affect their chances of chasing down the American dream...

Uncounted and unheard - HIV-positive immigrants in the US

Immigrants make up more than 12 percent - about 35 million people ? of America's population, but the US federal government has almost no idea of how HIV is affecting them, especially Africans...

Teodros Mekonnen: "As a refugee you have to start from zero. I have nothing left"

Teodros is an Ethiopian refugee living in Washington DC. When he had to flee Ethiopia for political reasons, a job offer in the United Arab Emirates seemed like the perfect way out. But Teodros was diagnosed as HIV positive, and failed to meet the country's immigration laws, which require an HIV negative diagnosis in order to grant a work permit. Now years later and miles away, Teodros told IRIN/PlusNews how he still struggles to deal with his status.

A long paper trail to accessing ARVs

France's tighter immigration policies are making it even harder for HIV-positive undocumented migrants to survive, despite laws allowing foreigners who are ill the right to stay in the country to seek treatment.

Fear and hope for HIV-positive illegal immigrants

The large window in Margarida Martins' office looks out over José Luís Champalimaud Square in a central Lisbon neighbourhood where many immigrants reside. It's not uncommon to find her attention drawn to African women with their children in their arms, standing across the street with a look of desperation on their faces, afraid to enter the building.