{"id":3447,"date":"2026-08-01T10:45:21","date_gmt":"2026-08-01T10:45:21","guid":{"rendered":"https:\/\/corporate-movers-usa.com\/?p=3447"},"modified":"2026-08-01T10:45:21","modified_gmt":"2026-08-01T10:45:21","slug":"the-legionnaires-outbreak-in-philly-50-years-ago-led-to-months-of-mystery-and-gave-the-disease-its-name","status":"publish","type":"post","link":"https:\/\/corporate-movers-usa.com\/?p=3447","title":{"rendered":"The Legionnaires\u2019 outbreak in Philly 50 years ago led to months of mystery \u2014 and gave the disease its name"},"content":{"rendered":"<div>\n<div>\n<div><audio><\/audio><\/div>\n<\/div>\n<p>As Philadelphia wallowed in self-pity over its seemingly botched Bicentennial celebrations 50 years ago, thousands of American Legion members arrived for a late July convention at the Bellevue-Stratford Hotel.<\/p>\n<p>Read more <a href=\"https:\/\/corporate-movers-usa.com\/?p=3445\">The U.S. faces financial losses as the Trump administration ends temporary protections for thousands of immigrants<\/a><\/p>\n<div><\/div>\n<p>Weeks later, dozens of them were dead from a mystery ailment, and scores of others were sickened. The victims, authorities said, returned home to develop respiratory infections that in some instances progressed to fatal cases of pneumonia.<\/p>\n<div><\/div>\n<div><\/div>\n<p>For more than half a year, local and federal health authorities were unable to determine what killed them, resulting in a web of fear, paranoia, and frustration that gripped not only Philadelphia, but also the nation at large. <\/p>\n<div><\/div>\n<p>This was the infamous Legionnaires\u2019 disease outbreak of 1976, perhaps the blackest of marks on Philadelphia\u2019s record for the year. Today, the disease \u2014 known as legionellosis, caused by <i>Legionella pneumophila<\/i> bacteria \u2014 still crops up, most recently in a 50-building outbreak in Manhattan that has so far caused at least six deaths.<\/p>\n<div><\/div>\n<p>Philadelphia was not the last, or even the first, city to experience the disease. But that outbreak half a century ago is how it got its name. Here is how The Inquirer and Daily News covered it:<\/p>\n<div><\/div>\n<div>\n<div>\n<blockquote>\n<p> https:\/\/www.newspapers.com\/article\/philadelphia-daily-news\/202696263\/ <\/p>\n<p> Article from Aug 3, 1976 Philadelphia Daily News (Philadelphia, Pennsylvania) <!--- <img decoding=\"async\" src=\"https:\/\/img.newspapers.com\/img\/img?clippingId=202696263&width=700&height=511\" style=\"display:none\"> --> <\/p><\/blockquote><\/div>\n<\/div>\n<div><\/div>\n<div>\n<h3>The initial outbreak<\/h3>\n<\/div>\n<div><\/div>\n<p>About 2,000 American Legion delegates came to town for a convention that ran from July 21 to 24, 1976, at the iconic Bellevue-Stratford Hotel. There were no signs of trouble during the convention, or for several days afterward.<\/p>\n<div><\/div>\n<p>But by early August, about a week after the convention\u2019s end, 14 Pennsylvania American Legion members were dead of an unclear illness, with their deaths involving \u201csome type of respiratory problem,\u201d reports from the time indicate. Roughly 50 others were reportedly hospitalized. <\/p>\n<div><\/div>\n<div><\/div>\n<p>Many of the initial victims were from Western Pennsylvania and had traveled to the city, though some Philadelphians were among the sick and dead. All had attended the American Legion convention the month before, officials said. <\/p>\n<div><\/div>\n<div>\n<div>\n<blockquote>\n<p> https:\/\/www.newspapers.com\/article\/the-philadelphia-inquirer\/202696881\/ <\/p>\n<p> Article from Jul 17, 1977 The Philadelphia Inquirer (Philadelphia, Pennsylvania) <!--- <img decoding=\"async\" src=\"https:\/\/img.newspapers.com\/img\/img?clippingId=202696881&width=700&height=511\" style=\"display:none\"> --> <\/p><\/blockquote><\/div>\n<\/div>\n<div><\/div>\n<p>As officials mounted an investigation that cost the state $25,000 a day, the death toll continued to increase. By mid-August, 29 people were dead and about 200 were sickened, reports indicate.<\/p>\n<div><\/div>\n<p>The Centers for Disease Control said at the time that the outbreak was \u201cwithout precedent\u201d in the agency\u2019s 30-year existence, and began conducting laboratory work to determine the cause.<\/p>\n<div><\/div>\n<div><\/div>\n<p>\u201cWe have not seen anything like this take place in such a short period of time,\u201d said Jay Satz, chief virologist with the Pennsylvania Department of Health. \u201cThis is something to be quite concerned about.\u201d<\/p>\n<div><\/div>\n<div>\n<div>\n<blockquote>\n<p> https:\/\/www.newspapers.com\/article\/philadelphia-daily-news\/202696483\/ <\/p>\n<p> Article from Aug 9, 1976 Philadelphia Daily News (Philadelphia, Pennsylvania) <!--- <img decoding=\"async\" src=\"https:\/\/img.newspapers.com\/img\/img?clippingId=202696483&width=700&height=511\" style=\"display:none\"> --> <\/p><\/blockquote><\/div>\n<\/div>\n<div><\/div>\n<div>\n<h3>Conspiracies reign<\/h3>\n<\/div>\n<div><\/div>\n<p>Health officials largely expected the cause to be a then-long-awaited epidemic of swine flu, which had killed a soldier at Fort Dix in New Jersey earlier in the year, and focused much of the investigation on identifying that disease, reports indicate. Other possible causes, including toxins such as nickel carbonyl, were also considered.<\/p>\n<div><\/div>\n<p>But public speculation about the cause, as well as how the disease arrived in the city, ran rampant. Or, as The Inquirer put it at one point, there were more people who had \u201ctheir own ideas on what is causing the mysterious disease than there are Kennedy assassination conspiracy theories.\u201d <\/p>\n<div><\/div>\n<div><\/div>\n<p>Inquirer readers wrongly blamed everything from pigeon droppings to contaminated ice. One person claimed the trash piling up on city streets, thanks to a municipal worker slowdown at the time, was the reason. Another contended shellfish was the cause, noting that \u201cmostly men had been stricken because women don\u2019t like shellfish.\u201d<\/p>\n<div><\/div>\n<p>Others believed the cause was more nefarious. Surely the disease had come from communists from Ecuador or Poland, who intentionally spread it to American Legion members. No, it was a sneak attack staged by the potentially disruptive activist groups Mayor Frank Rizzo had warned about.<\/p>\n<p>Read more <a href=\"https:\/\/corporate-movers-usa.com\/?p=3443\">6abc\u2019s Cecily Tynan discusses her surprise retirement, sealed after a brief bout with vertigo<\/a><\/p>\n<div><\/div>\n<p>The American Legion, meanwhile, did not believe foul play was involved \u2014 nor did investigators, who said no evidence supported any of these theories. The truth, it seemed, was far less salacious. <\/p>\n<div><\/div>\n<div><\/div>\n<div>\n<h3>The Bellevue closes<\/h3>\n<\/div>\n<div><\/div>\n<p>As worry over the illness wore on, the Bellevue-Stratford hotel itself also fell victim to the disease\u2019s impacts, closing in November 1976.<\/p>\n<div><\/div>\n<p>Though investigators avoided directly implicating the hotel early on, it suffered severe financial damage. Reservations collapsed into single-digit occupancy percentages, resulting in losses of up to $10,000 per day, reports from the time indicate. William G. Chadwick, the hotel\u2019s vice president and general manager, said business had been devastated.<\/p>\n<div><\/div>\n<div>\n<div>\n<blockquote>\n<p> https:\/\/www.newspapers.com\/article\/philadelphia-daily-news\/202696555\/ <\/p>\n<p> Article from Nov 10, 1976 Philadelphia Daily News (Philadelphia, Pennsylvania) <!--- <img decoding=\"async\" src=\"https:\/\/img.newspapers.com\/img\/img?clippingId=202696555&width=700&height=511\" style=\"display:none\"> --> <\/p><\/blockquote><\/div>\n<\/div>\n<div><\/div>\n<p>\u201cWe have found it impossible any longer to withstand the economic impact of the worldwide adverse publicity which has been associated with the Legionnaires\u2019 disease,\u201d he said.<\/p>\n<div><\/div>\n<p>By then, the Bellevue had operated for more than 70 years and was considered a jewel in the city\u2019s hospitality crown. Its closure, Rizzo said, was a \u201cgreat loss,\u201d and he vowed the property would host a new, modern hotel to fill the gap. Today, it is a mixed-used development at 200 S. Broad St. that includes a hotel portion.<\/p>\n<div><\/div>\n<div><\/div>\n<p>Philadelphia\u2019s Bicentennial tourist business also suffered, with several conventions canceling their bookings over fear of the illness, significantly affecting what was expected to be a banner year for visitors. Public perception erred on the side of avoiding the city, which some local officials tried to rebut.<\/p>\n<div><\/div>\n<div>\n<div>\n<blockquote>\n<p> https:\/\/www.newspapers.com\/article\/philadelphia-daily-news\/202696766\/ <\/p>\n<p> Article from Aug 19, 1976 Philadelphia Daily News (Philadelphia, Pennsylvania) <!--- <img decoding=\"async\" src=\"https:\/\/img.newspapers.com\/img\/img?clippingId=202696766&width=700&height=511\" style=\"display:none\"> --> <\/p><\/blockquote><\/div>\n<\/div>\n<div><\/div>\n<p>\u201cWe are still a safe city,\u201d said Eugene Hosmer, director of the Philadelphia Convention and Visitors Bureau, noting the disease struck just as low civic self-esteem seemed to be fading. And then, \u201cwe\u2019re hit with this.\u201d<\/p>\n<div><\/div>\n<p>Robert Jacob, manager of the Penn Center Inn and head of the Greater Philadelphia Hotel Association, put the illness\u2019 impact more dramatically.<\/p>\n<div><\/div>\n<p>\u201cWe\u2019re being crucified,\u201d he said.<\/p>\n<div><\/div>\n<div><\/div>\n<div>\n<h3>A break in the case<\/h3>\n<\/div>\n<div><\/div>\n<p>Investigators searched for months for the disease\u2019s cause to no avail, facing substantial criticism \u2014 including a congressional subcommittee hearing during which their efforts were labeled an \u201cembarrassment,\u201d according to reports from the time.<\/p>\n<div><\/div>\n<p>But in January 1977, after tens of thousands of tests, investigators identified the culprit. The deadly Legionnaires\u2019 disease, the CDC found, was caused not by a toxin or virus, but a bacterium. One so strange and unknown, lab workers and scientists had missed it for months.<\/p>\n<div><\/div>\n<div>\n<div>\n<blockquote>\n<p> https:\/\/www.newspapers.com\/article\/the-philadelphia-inquirer\/202696612\/ <\/p>\n<p> Article from Jul 17, 1977 The Philadelphia Inquirer (Philadelphia, Pennsylvania) <!--- <img decoding=\"async\" src=\"https:\/\/img.newspapers.com\/img\/img?clippingId=202696612&width=700&height=511\" style=\"display:none\"> --> <\/p><\/blockquote><\/div>\n<\/div>\n<div><\/div>\n<p>Credited with its discovery was Joseph McDade, then a CDC microbiologist in the agency\u2019s leprosy and rickettsia laboratory. On a hunch after receiving a routine report, McDade reexamined slide samples and decided to look for unfamiliar microbe shapes. And he found them \u2014 and they appeared not only in samples from Philadelphia, but also in past unsolved outbreaks.<\/p>\n<div><\/div>\n<p>The disease was found to be present in samples from a 1965 pneumonia outbreak at St. Elizabeth\u2019s Hospital in Washington, in which 18 people died, and a 1968 one that sickened 144 people at a Pontiac, Mich., health department building. Additionally, the illness had struck a 1974 Independent Order of Odd Fellows convention in an outbreak that killed two people \u2014 also held at the Bellevue-Stratford.<\/p>\n<div><\/div>\n<div>\n<div>\n<blockquote>\n<p> https:\/\/www.newspapers.com\/article\/the-philadelphia-inquirer\/202696954\/ <\/p>\n<p> Article from Jul 17, 1977 The Philadelphia Inquirer (Philadelphia, Pennsylvania) <!--- <img decoding=\"async\" src=\"https:\/\/img.newspapers.com\/img\/img?clippingId=202696954&width=700&height=511\" style=\"display:none\"> --> <\/p><\/blockquote><\/div>\n<\/div>\n<div><\/div>\n<p>Investigators later determined the 1976 outbreak had been spread via airborne water mist from the hotel\u2019s air-conditioning cooling towers. The towers allowed the bacteria to grow and be spread to convention attendees, as well as some individuals who had traveled near the hotel, investigators found.<\/p>\n<div><\/div>\n<p>\u201cWe are dealing with a very real phenomenon which has been present in the past but has never been recognized,\u201d said CDC director David Sencer in 1977. \u201cWe now know what to look for.\u201d<\/p>\n<p>Read more <a href=\"https:\/\/corporate-movers-usa.com\/?p=3441\">Police were searching for a man who fired a gun inside a Walmart in Delaware County<\/a><\/p>\n<div><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>For more than half a year, local and federal health authorities were unable to determine what had killed American Legion members who attended a convention at the Bellevue-Stratford Hotel.<\/p>\n","protected":false},"author":1,"featured_media":3446,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-3447","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - 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