The extent of the impacts of the Trump administration’s sudden 90-day freeze of almost all foreign aid is still unclear almost a week on, as officials and aid workers overseas try to make sense of which activities must be suspended.

Patients and health care advocates said the abrupt decision to halt U.S. funding for a lifesaving H.I.V. program led to widespread confusion. The backtracking didn’t help.

The 90-day suspension of US aid and “stop-work” requirement following the president’s executive order last week has exposed with lightning-like intensity the global reach of US assistance, whose diverse projects worldwide have been an essential part of American soft power.