HIV vaccine trial in Africa halted after disappointing initial results

African-led trial ended a year early as researchers conclude there is ‘little or no chance’ new combination vaccines cut HIV risk

The first trial in Africa of two combination vaccines to prevent HIV has been halted after researchers concluded it was not working.

The pre-exposure prophylaxis vaccine (PrEPVacc) was being tested on 1,500 people aged between 18 and 40 in Uganda, Tanzania and South Africa.