Philadelphia lab briefly locked down after worker finds ‘smallpox’ vials in freezer – The Guardian
- Philadelphia lab briefly locked down after worker finds ‘smallpox’ vials in freezer The Guardian
- Vials labeled ‘smallpox’ found at Merck facility in Pennsylvania, feds say 6abc Philadelphia
- Vials of deadly virus accidentally discovered at Pennsylvania research facility while cleaning freezer: CDC Fox News
- Vials Labeled ‘Smallpox’ Found in Montco Lab: The Lineup NBC 10 Philadelphia
- Frozen vials marked “Smallpox” found in lab freezer in Pennsylvania, CDC says CBS News
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Source: Air Tools