CHAGAS THE NEW AIDS VASION CONTAGIOUS BY (KISSING )

Chagas, a tropical disease spread by insects, is causing some fresh concern following an editorial—published earlier this week in a medical journal—that called it "the new AIDS of the Americas."

More than 8 million people have been infected by Chagas, most of them in Latin and Central America. But more than 300,000 live in the United States.

The editorial, published by the Public Library of Science's Neglected Tropical Diseases, said the spread of the disease is reminiscent of the early years of HIV.

"There are a number of striking similarities between people living with Chagas disease and people living with HIV/AIDS," the authors wrote, "particularly for those with HIV/AIDS who contracted the disease in the first two decades of the HIV/AIDS epidemic."