By Kristen Jordan Shamus, Detroit Free Press, and Robin Erb, Bridge Magazine

About 22,000 surgical masks shipped from the federal government's strategic national stockpile to the University of Michigan in the midst of the coronavirus pandemic are not usable, and have had to be removed from Michigan Medicine's inventory.

Mary Masson, a spokeswoman for the Ann Arbor-based health system, said a shipment of 22,000 ear-loop surgical masks arrived last week from the federal stockpile, which was created to boost state and local supplies during public health emergencies.

About 2,000 of the masks were distributed to health care workers, Masson said, but "we found them to be less durable and so have removed as many as possible from inventory and are not distributing the rest.

“We found enough problems with the shipment that we didn’t want to use the remaining ones.”

This story was co-published with Bridge Magazine.

This comes amid reports nationally that nearly 6,000 medical masks shipped from the national stockpile to Alabama had dry rot, and that faulty elastic on masks sent to Oregon made them unusable, according to the New York Times. It also reported 150 ventilators sent to Los Angeles were broken when they arrived and had to be repaired before they could be used.

The problems come at a time when hospital systems around many parts of the country are filled with patients who have the highly infectious novel coronavirus but don't have adequate personal protective equipment to reduce chances of healthcare workers getting sick.

Michigan, and metro Detroit, especially, have been hard hit by COVID-19. The state ranked fourth nationally Tuesday morning in the number of confirmed coronavirus cases, behind New York, New Jersey and Massachusetts, according to the Johns Hopkins COVID-19 Global Case Tracker.

Wayne County, which includes Detroit, along with neighboring Oakland and Macomb counties have the most cases — and deaths — in Michigan.

Washtenaw County, where Michigan Medicine is based, has the fifth-highest case count in the state.

"We’ve been accepting transfer patients from multiple southeast Michigan hospitals since the pandemic began," Masson said, providing some relief to overloaded metro Detroit hospitals. As of Monday, 234 patients with COVID-19 were hospitalized at Michigan Medicine.

Masson said the hospital system has alerted officials at the strategic national stockpile about the problem with the masks. Messages seeking comment were sent Tuesday morning to the U.S. Centers for Disease Control and Prevention and the strategic national stockpile, but neither immediately replied.

The Michigan Department of Health and Human Services said Tuesday that it hadn’t gotten reports of any broken ventilators that came to the state from the stockpile, but that it was still collecting details about defective masks.

A USA TODAY analysis of a U.S. House Oversight Committee report detailed that, as of last week, Michigan had received the following supplies from the federal stockpile:

311,060 N95 respirator masks

740,018 surgical masks

148,672 face shields

121,704 surgical gowns

3,888 coveralls

618,930 gloves

400 ventilators

Other Michigan health care systems surveyed by the Free Press and Bridge Magazine did not report problems with the supplies they've gotten from the federal government.

Beaumont Health spokesman Mark Geary said the eight-hospital health system has received "multiple shipments" from the federal stockpile. Though some equipment and supplies came from "unfamiliar" brands, none were defective, he said.

Henry Ford Health System also confirmed that it has received supplies from the national stockpile and has used them without any trouble.

Laura Blodgett, a spokeswoman for St. Joseph Mercy Health System, said it has received both masks and ventilators from the national stockpile, "and none have been defective so far."

Ascension Michigan said only that it is "grateful for all of the supplies we are receiving through our national and local agencies, community organizations and businesses, community member donations, and sister Ascension ministries."

Its spokeswoman, Melissa Thrasher, did not reply to an email message asking specifically whether any of the supplies from the national stockpile were defective.

DMC spokesman Brian Taylor said the system received N95 masks, face shields, isolation gowns, gloves and hand sanitizer from the stockpile, but he had no reports of them being defective.

Get involved: The Detroit Free Press and Bridge Magazine are teaming up to report on Michigan hospitals during the coronavirus pandemic. If you work in a Michigan hospital, we would love to hear from you. You can contact Kristen Jordan Shamus at kshamus@freepress.com or Robin Erb at rerb@bridgemi.com.