WASHINGTON, D.C. – Two national pharmacy chains that the federal government entrusted to inoculate people against covid-19 account for the lion’s share of wasted vaccine doses, according to government data obtained by KHN.
The Centers for Disease Control and Prevention recorded 182,874 wasted doses as of late March, three months into the country’s effort to vaccinate the masses against the coronavirus. Of those, CVS was responsible for nearly half, and Walgreens for 21%, or nearly 128,500 wasted shots combined.
CDC data suggests that the companies have wasted more doses than states, U.S. territories and federal agencies combined. Pfizer’s vaccine, which in December was the first to be deployed and initially required storage at ultracold temperatures, represented nearly 60% of tossed doses.
It’s not completely clear from the CDC data why the two chains wasted so much more vaccine than states and federal agencies. Some critics have pointed to poor planning early in the rollout, when the Trump administration leaned heavily on CVS and Walgreens to vaccinate residents and staff members of long-term care facilities. In response to questions, CVS said “nearly all” of its reported vaccine waste occurred during that effort. Walgreens did not specify how many wasted doses were from the long-term care program.
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One thing is clear: Months into the nation’s vaccination drive, the CDC has a limited view of how much vaccine is going to waste, where it’s wasted and who is wasting it, potentially complicating efforts to direct doses to where they are needed most. Public health experts say having a good handle on waste is crucial for detecting problems that could derail progress and risk lives.
The Pfizer-BioNTech and Moderna vaccines, which come in multidose vials, are fragile and have limited shelf lives. Overall, waste has been minuscule: As of March 30, the U.S. had delivered roughly 189.5 million vaccine doses and administered 147.6 million, including 7.7 million in long-term care facilities, according to the CDC.
Among other things, tracking wasted doses helps to identify bottlenecks where distribution adjustments might be needed, said Dr. Bruce Y. Lee, a professor of health policy and management at the City University of New York. Because the federal government is footing the bill for the country’s doses, any waste amounts to “basically throwing [taxpayer] money down the chute,” he said. CVS, Walgreens and other retailers don’t pay for the vaccine. The government provides it. And under the Medicare program, it pays providers roughly $40 for each dose administered.
Particularly early on, officials didn’t adequately assess where there would be demand and set up sites in response, Lee said — something that’s especially important when trying to jab as many people as possible as quickly as possible.
“If you think of any business, they’re going to determine where the customers are first,” he said. “It’s not just a matter of loading up vaccine and going to a place.”
KHN’s survey of vaccine waste is based on public records requests to the CDC and all 50 states, five major cities, Puerto Rico and Washington, D.C. Combined, the records document more than 200,000 wasted doses. However, the data has clear shortcomings. Data from 15 states, the District of Columbia and multiple U.S. territories are not included in the CDC’s records. And, in general, waste reporting has been inconsistent.
In addition to the CDC, 33 states and D.C. provided at least some data to KHN in response to those records requests. They reported at least 18,675 additional doses that have been wasted across 10 jurisdictions not represented in the CDC figures. They include 9,229 doses wasted in Texas as of March 26 and 2,384 in New Hampshire as of March 10.
An additional eight states told KHN of more wasted doses than they reported to the CDC.
But no city or state comes close to the waste reported by CVS and Walgreens, whose long-term care vaccination drive was criticized by some officials as slow and ineffective. Among nursing home staffers, a median of 37.5% reported they got a shot in the first month, according to a February CDC study.
“To me, this ultimately correlates with just poor planning,” said Dr. Michael Wasserman, immediate past president of the California Association of Long Term Care Medicine and a critic of the corporate effort.
Wasserman said the companies’ approach was too restrictive and their unfamiliarity with long-term facilities’ needs harmed the effort.
“CVS and Walgreens didn’t have a clue when it came to interacting with nursing homes,” he said. “Missed opportunities for vaccination in long-term care invariably results in deaths.”
A CVS spokesperson, Michael DeAngelis, in an email blamed wasted doses on “issues with transportation restrictions, limitations on redirecting unused doses, and other factors.”
“Despite the inherent challenges, our teams were able to limit waste to approximately one dose per onsite vaccination clinic,” he added.
Walgreens said its wastage amounted to less than 0.5% of vaccines the company administered through March 29, which totaled 3 million shots in long-term care facilities and 5.2 million more through the federal government’s retail pharmacy partnership.
“Our goal has always been ensuring every dose of vaccine is used,” company spokesperson Kris Lathan said in an email. Before scheduled clinics, she said, Walgreens would base doses it would need on registrations, “which minimized excess and reduced overestimations.”
CDC spokesperson Kate Fowlie said that because the retail pharmacy giants were tasked with administering a large number of doses, “a higher percentage of the overall wastage would not be unexpected, particularly in an early vaccination effort that spanned thousands of locations.” Since President Joe Biden took office in January, his administration has directed pharmacies to prioritize vaccinations for teachers and school personnel.
Overall, pharmacies accounted for almost 75% of wasted doses reported to the CDC. States and some large cities accounted for 23.3% of vaccine waste reported, and federal agencies, including the Bureau of Prisons and the Indian Health Service, for just 1.54%. The Virgin Islands — the only U.S. territory in the federal data — was 0.19%.
“Though every effort is made to reduce the volume of wastage in a vaccination program, sometimes it’s necessary to identify doses as ‘waste’ to ensure anyone wanting a vaccine can receive it, as well as to ensure patient safety and vaccine effectiveness,” Fowlie said. Even still, the CDC has provided guidance and worked with health departments to train staff members to reduce wastage, and clinic staffers should do “everything possible” to avoid wasting shots, she added.
Vaccine waste could increase in the coming weeks as officials shift tactics to inoculate harder-to-reach populations, public health experts say.
“I think we are getting to a place where, to continue to be successful with vaccination, we’re going to have to tolerate some waste,” said Dr. Marcus Plescia, chief medical officer of the Association of State and Territorial Health Officials. People unwilling to travel to a mass-vaccination site might go to a primary care physician or smaller rural pharmacy that might not be able to use every dose in an open vial, he said.
Claire Hannan, executive director of the Association of Immunization Managers, said concerns about waste should not trump getting shots into arms.
“If someone’s there, you need to vaccinate them,” she said. “In our efforts not to waste a dose, we may be missing opportunities to vaccinate because we don’t have 15 people lined up or 10 people lined up.”
CDC Numbers Don’t Match State Data
The federal government collects information about vaccine waste through federal systems called VTrckS, which manages ordering and shipments, and Tiberius, a platform run by the Department of Health and Human Services that monitors distribution. VTrckS can exchange data with state and local immunization registries that track who has received a shot, but some states rely on manual data entry, Hannan said.
The 15 states not included in the CDC’s data are Alaska, California, Colorado, Kansas, Louisiana, Maine, Maryland, Michigan, Nebraska, Nevada, New Hampshire, Ohio, Oklahoma, Oregon and Texas. The District of Columbia is also missing.
Of those jurisdictions, 11 provided data to KHN: Alaska, Colorado, Kansas, Maryland, Nebraska, Nevada, New Hampshire, Ohio, Oregon, Texas and D.C.
Most of those reported minimal waste to KHN: Colorado, Kansas, Nebraska and D.C. together registered just 1,090 wasted doses.
In others, the numbers are more significant. On March 19, the Maryland Department of Health said it knew of 3,175 wasted doses.
Texas had the most wasted doses of any state in either the CDC’s data or the data states provided to KHN. Its records showed 9,229 wasted doses as of March 26, putting it third in overall waste behind CVS and Walgreens.
Fowlie, the CDC spokesperson, said the agency is “working closely” with states that have technical issues to ensure accurate reporting.
Broken Freezers, Bent Needles, No-Shows
The reasons states gave for waste varied, from broken vials and syringes, to provider storage errors, to leftover doses from open vials that couldn’t be used.
The largest waste incidents, in which hundreds of doses were lost at a time, tended to be due to freezer malfunctions or workers leaving doses at room temperature too long.
But state records also register the little things that can go wrong.
On Dec. 16, the public health department in Gunnison County, Colorado, lost a single dose of the Pfizer vaccine when someone bumped into a table and a vial spilled. On Jan. 5, the Tri-County Health Department in Westminster, Colorado, reported that it wasted a Moderna dose because a hypodermic needle bent.
Remi Graber is a registered nurse who has vaccinated people at mass sites and community health clinics in Rhode Island. They said it’s not uncommon for a vial to have one too many or one too few doses, which can lead to a dose being counted as wasted. There are also sometimes syringe problems that result in waste.
But Graber said the biggest problem is people not showing up. Once a vial is punctured, Pfizer’s vaccine must be used within six hours. On April 1, Moderna announced that an opened vaccine vial was good for 12 hours — double what it had been previously.
“What could happen is you get people who just decide, ‘You know what? I don’t need my vaccine today. I’m not going to show up,’” they said. “Well, now we’re scrambling to find somebody to take the vaccine, because we don’t want to waste it.”
Joshua Eaton contributed to this report which also ran in NBC News and KHN (Kaiser Health News), a nonprofit news service covering health issues. It is an editorially independent program of KFF (Kaiser Family Foundation) that is not affiliated with Kaiser Permanente.