The campaign was designed to be the most significant since the 'Don't die of ignorance' Aids-awareness drive in the 1980s.
'This does not mean the campaign will be dropped and we hope the freeze will be lifted very soon,' a DoH spokeswoman told PRWeek. The department would not elaborate on the decision.
The DoH stressed the freeze affected all new spend, including policy initiatives, and was not just related to PR.
Incumbent Harrison Cowley continues to advise the DoH on sexual-health campaigns.