What's on in Philadelphia
Red, white and blue collateral from the 58th Annual Convention of the American Legion, including a program booklet and a Liberty Bell pin

Mütter MuseumLogan Square / Rittenhouse

The Philly Killer

Now showing30 May 2026 – 31 December 2026$25

Summer 1976: as Philadelphia threw America's Bicentennial party, a deadly unidentified pneumonia struck. The true story of Legionnaires' disease.

Book tickets Exhibition website

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In July 1976, about 2,000 veterans from across Pennsylvania checked into the Bellevue-Stratford on Broad Street for the American Legion convention. Within days, 180 of them were seriously ill. Ten days after it ended, 22 people had died of a pneumonia nobody could name.

You walk into the Cadwalader Gallery to 1970s music and a red, white and blue color scheme, past a staged living room, then follow the outbreak along big walls of photographs and text. It covers the feverish press coverage, the conspiracy theories, the city, state and federal epidemiologists, and the Congressional hearings, and ends on the present: Legionella is still the leading cause of waterborne disease outbreaks in the US.

Entry is included with a standard Mütter ticket. Medical, nursing and public health students get $15 off a timed ticket with the code MEDSTUDY250. The museum stays open until 8pm on Tuesdays through 27 October.

Editor's pick

In July 1976 about 2,000 veterans checked into the Bellevue-Stratford for the American Legion convention; within days 180 were seriously ill with a pneumonia nobody could name. The show traces the epidemiologists, conspiracy theories and Congressional hearings.

Look for

  • The staged 1976 living room

    Look for a 1970s living room set up in the gallery, with period music playing, placing you in the summer the outbreak hit.

Good for

  • Nerding Out
  • Out-Of-Town Guests

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