Updated at 12:45 p.m.

The White House sought to show it was shoring up its efforts to corral the spread of coronavirus on Thursday, naming an internationally recognized HIV/AIDS expert as its new coronavirus response coordinator.

Debbie Birx is a State Department ambassador-at-large who works on global health diplomacy issues. Vice President Pence said Birx would be detailed to his office.

President Trump put Pence in charge of the response after the stock market plunged and federal health officials warned that Americans should prepare for disruptions if the new COVID-19 coronavirus worsens in the United States.

The issue has quickly become political, and Democrats in Congress and on the campaign trail have panned Trump for minimizing the risks and failing to appoint a "czar" to lead to the response.

Birx will also join Trump's coronavirus task force, led by Health and Human Services Secretary Alex Azar, which is charged with responding to the virus. On Thursday, Pence also bolstered its ranks by adding Treasury Secretary Steven Mnuchin and Trump's economic adviser Larry Kudlow — signalling concerns about the growing economic threat posed by the virus. Surgeon General Jerome Adams will also join the task force, Pence said.

Birx directed the Centers for Disease Control's global HIV/AIDS division before she became the U.S. global AIDS coordinator in 2014.

Her new role was applauded by former President Barack Obama's ebola response coordinator Ron Klain, who was less formally known as the "ebola czar." But Klain — a close adviser to former Vice President and current Democratic primary candidate Joe Biden — noted there are now layers of top responders to the virus.

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