The judge accused the Trump administration of discriminating against racial minorities and L.G.B.T.Q. people and ordered the government to restore much of the funding.
West African nations are struggling to track and treat infections, and experts warn the outbreak is rapidly spreading, while the United States is cutting global vaccination efforts.
The appointments of at least two of the experts are likely to draw an uproar from pro-vaccine groups for their criticism of federal scientists and the Biden administration’s Covid vaccine policies.
The health secretary cited financial conflicts, but a White House official and someone familiar with his thinking said he was also concerned about ties to Democrats.