Experts say injection that offers 100% protection against HIV is ‘stunning’

As an HIV treatment, the drug costs more than 40,000 dollars a year in the US (David Cheskin/PA)

Twice-yearly shots used to treat Aids were 100% effective in preventing new infections in women, according to study results published Wednesday.

There were no infections in the young women and girls that got the shots in a study of about 5,000 in South Africa and Uganda, researchers reported.