Mass Health Officials Let UMass Lab Execute Dogs Before Inspection
A whistleblower says UMass Chan Medical School killed dozens of lab dogs hours before a Massachusetts Department of Public Health inspection.
They had hidden years of alleged neglect and suffering from regulators. PETA investigation exposes the scandal.
PETA filed complaints with the Massachusetts Department of Public Health about UMass Chan Medical School’s labs. They alleged dogs were starved to stay small for cages, underwent repeated invasive surgeries with poor care, and suffered untreated complications.
PETA tipped off DPH for an inspection, but a whistleblower claimed the school killed all the dogs right before inspectors showed up to avoid violations. DPH hasn’t publicly commented much, but the USDA did cite the school for some Animal Welfare Act issues.
It’s more scrutiny on the university’s animal research than on DPH itself.
Past Violations
- UMass Chan has a record of issues. In 2021, they were cited for neglect that killed three hamsters.
- In 2022, they took in illegally trafficked endangered monkeys.
- USDA hit them with an official warning in 2025 for serious, repeated violations like careless animal handling. This latest dog case fits a pattern the feds have flagged before.
What you can do to help!
The most direct thing is contacting your state reps and pushing for an independent investigation into both the lab and how DPH handled the tip-off.
Public records requests to DPH and UMass can also force transparency.
Donating to PETA or a watchdog like the White Coat Waste Project helps too — they’re the ones actually digging into this stuff.






