President Donald Trump's Department of Health and Human Services is withholding thousands of comments critiquing the administration's plans to reduce regulations for faith-based organizations.
Azar will be replacing Tom Price, the former HHS secretary who resigned amid a private plane scandal in September.
Trump's formal announcement will allow the Department of Health and Human Services to take sweeping actions.
Representative Tom Price of Georgia faces a second Senate committee on his nomination for health secretary.
The move was prompted by a petition from Senator Rand Paul.
Health workers are crucial in stopping the spread of Ebola in West Africa. And with almost 300 dead from the outbreak so far, managing their care has become a priority.