The US will provide $1.5bn (£1.1bn) under the deal that was negotiated after Trump cut USAID funding.
Trevor Mwamba was detained last month with other opposition figures and charged with treason, his son says.
Mfuwe Mags are chasing promotion in the familiar black-and-white stripes of Newcastle United.
Scientists say the record-breaking journey by three brothers offers hope wildlife can survive growing pressures.
At least 12 people are being treated for anthrax after eating infected meat from wildlife carcasses.
Farmers and dairy experts will discuss the breed's impact on milk production and rural livelihoods.
Hakainde Hichilema swept to victory, but his main rival is now in custody charged with treason.
Mundubile had previously gone into hiding at a United Nations building in Zambia's capital.
Brian Mundubile had been in hiding after disputing the outcome of the recent presidential election.
