(CNN) — The White House is working with key manufacturers to help provide logistics support during the baby formula shortage, a White House official said in a statement on Monday.

“The White House is having ongoing conversations with the four major infant formula manufacturers — Reckitt, Abbott, Nestle/Gerber, and Perrigo — to work with them to identify transportation, logistical, and supplier hurdles to increasing production of formula at their US- and FDA-approved facilities, to expand the amount and speed of FDA-approved formula being shipped into the country, and ensure that formula is quickly moving to retailers from factories,” the White House official said.

CNN reported earlier Monday that the Biden administration is confronting a barrage of questions and criticism for the national baby formula shortage that has anxious and angry parents hopping from store to store in search of baby food. The administration offered a new website, HHS.gov/formula, to provide resources to families in need, but when a CNN reporter tested out some of those options, the exercise resulted in apologetic customer service representatives, one hold time that lasted well over an hour and serious challenges in finding baby formula through some of the main suggestions listed on the new HHS website.

The White House is also in “ongoing communication” with Target, Amazon, Walmart and other major retailers, the official said, “to identify parts of the country that may be at risk of critically low supply of infant formula, and have offered to work with manufacturers and retailers to bring more formula to those parts of the country, including with US government transportation and logistics support.”

President Joe Biden held virtual meetings Thursday with the leadership of Target and Walmart, as well as formula manufacturers Reckitt and Gerber, respectively. Officials have since been in “close communication to follow up on those conversations,” per the official.

There are also efforts to shore up the supply chain, with outreach to formula manufacturers’ suppliers.

“We are also contacting suppliers to infant formula manufacturers to inform them that their materials are critical for boosting U.S. infant formula production and they should prioritize their production and delivery,” the official noted.

During an appearance on CNN’s “New Day” on Monday, US Food and Drug Administration commissioner Dr. Robert Califf said the administration is “doing everything we can” to resolve the shortage.

Califf pointed to efforts to work with manufacturers to increase production, work on supply chain, work closely with Abbott to get its shuttered plant open as soon as possible. He suggested the FDA would make it possible for formula intended for other countries to become available in the US in a set of announcements expected “by the end of the day today.”

Pressed on how much of an impact that move will have, he said the situation more broadly will “gradually improve” over a “few weeks.” This Thursday, Califf testifies before the Agriculture Appropriations Subcommittee on the FDA’s 2023 budget request and oversight of infant formula.

The baby formula shortage has been exacerbated by the FDA’s shutdown of the country’s largest formula plant, the Abbott Nutrition facility in Sturgis, Michigan.

Production halted at the facility in February after reports that four infants who drank formula manufactured at the plant had fallen ill with rare and serious infections caused by Cronobacter sakazakii bacteria. Two of the babies died. A whistleblower also detailed allegations to the FDA that Abbott was hiding safety issues months before the infant formula was recalled in February.

Pressed on how soon supply will be back to normal, HHS Secretary Xavier Becerra declined to give specifics, saying on CNN Monday that “Abbott is the one that can tell you the timeline.”

Becerra said the federal government is working with the company to make sure it’s addressing the safety concerns raised to them and that “it should be done in a matter of weeks.”

“We don’t run their plants. Only they can address the safety concerns that were identified through our inspections. They have been working on this awhile, we have been advising them of what they need to do,” Becerra told CNN’s Kate Bolduan on “At This Hour.”

“We’ll do everything we can, we’ll pull all the levers we can to help them move quickly as possible, but they control their plant. They own and operate it, they’re the ones that have to do the fix.”

Abbott said last week it could restart production at its Michigan facility, pending FDA approval, within two weeks, but it could be a few more weeks until the formula is made available on shelves.

On CNN, Becerra also defended the administration’s response to the Abbott recall and complaint, saying, “We have been moving as quickly as we can.”

“FDA moves with deliberate speed to make sure that if you’re going to do something as drastic as urge a manufacturer to pull a product off the shelves, that there’s good evidence for it. That’s why it takes a little time,” he said.

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