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Temple

Shared vaping devices are identified as a transmission route in a mumps outbreak

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Confirmed Threat

Temple University experienced one of the largest U.S. campus mumps outbreaks of the decade starting in February 2019, ultimately producing 186 confirmed cases in students, faculty, and people connected to the university. The university issued its first FAQ alert on March 22, 2019 after the Philadelphia Department of Public Health flagged a cluster, then ran multiple mass vaccination clinics that administered more than 6,000 MMR doses, including 2,285 in a single day.

Alerts
2
Response
—
Killed
0
Injured
186
Institution
Temple University
Public R1 · PA
All Temple cases →
~39,000 studentsTemple Now / Student and Employee Health Services
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Read when and how Temple says it will use TUalert: summarized, quoted, and analyzed.
Documented Timeline

Alert Sequence

2 messages in sequence · 1 verified verbatim

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INITIAL ALERTEmail
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Temple News: FAQ — Temple University mumps outbreak
UPDATEEmail
Verified verbatim5289 chars
To the Temple University community: I would like to share with you the most up-to-date health information. Seven new mumps cases emerged last week—by far the lowest total since the start of the outbreak more than seven weeks ago. This continues a decline in recent cases of mumps reported to our office over the last several weeks. At present, we are aware of fewer than 10 active cases of mumps at Temple University. Onset of symptoms (by week, through April 13) Number of cases (including non-students and staff) Feb. 24–March 2 17 March 3–9 3 March 10–16 46 March 17–23 31 March 24–30 20 March 31–April 6 22 April 7–13 7 Temple University’s Student and Employee Health Services, as of last week, has issued more than 6,000 doses of the Measles, Mumps, and Rubella (MMR) vaccine. Local pharmacies and urgent-care centers likely have administered a significant number of vaccine doses as well. The aforementioned figures are encouraging. They demonstrate the university’s actions to control the spread of mumps are working. Nonetheless, the health and wellness of our students, faculty, and staff remain our top priority. Temple Student and Employee Health Services will continue to make doses of the MMR vaccine available at no charge to members of our university community. To schedule an appointment to receive the vaccine, students (215-204-7500) and employees (215-204-2679) are encouraged to call Temple Student and Employee Health Services. My sincerest thanks belong with the staff of Student and Employee Health Services, the Office of Emergency Management, and all who have helped throughout this effort. Also, we are grateful for the ongoing work and counsel from Philadelphia’s Department of Public Health (PDPH), whose partnership has been invaluable. While we are encouraged by the trends, it remains important to be aware of the symptoms and take steps to keep you and others healthy. The university has created a regularly updated FAQ as an additional resource. WHAT YOU NEED TO KNOW Mumps is a highly infectious disease passed through saliva and respiratory secretions. While the incubation period ranges from 12 to 25 days, symptoms often appear 16 to 18 days after exposure. The symptoms for mumps are similar to influenza (the flu) and often include tender swollen glands below the ear and along the jawline on one or both sides of the face and neck, headache, fever and cold-like symptoms. People with mumps are considered infectious from two days before swelling begins through five days after the start of swelling. If you are experiencing symptoms or have questions, please contact StudentHealth@temple.edu or EmployeeHealth@temple.edu. WHAT YOU CAN DO Management for mumps is similar to that of chicken pox. There is no treatment—only relief of symptoms. Take Motrin or Tylenol for fever and swelling, drink plenty of fluids and get plenty of rest. One of the most important steps you can take if you experience symptoms is to self-isolate, avoid travel and limit contact with others for five days from the onset of symptoms. For healthy people, there is very little risk of serious complications from the mumps. If you have had close contact with someone symptomatic with the mumps, and have never received the MMR vaccine, the recommendation is to receive the full two-dose MMR series. If you have had close contact with someone symptomatic with the mumps, and have previously received the MMR vaccine, the recommendation is to receive a third booster dose of the vaccine. If you are immunocompromised or pregnant, please contact your doctor immediately. The following precautions against mumps and flu are advised. Cover your mouth with a tissue when coughing or sneezing; use your upper sleeve to cover your cough, not your hand. Wash hands frequently and efficiently. When unable to wash with soap and water, use an alcohol-based hand sanitizer. Avoid sharing food and drinks or participating in other activities that may result in saliva exposure. Stay home from school or work when you are sick to rest and limit the spread of illness to others. Self-isolation after the onset of symptoms remains one of the most critical steps a symptomatic individual can take toward recovery and limiting the spread of mumps. ADDITIONAL RESOURCES For additional information, please review the following resources. Centers for Disease Control and Prevention, Mumps: Questions and Answers Centers for Disease Control and Prevention, Mumps Information The university will continue to update and educate the campus community; treat anyone who presents symptoms; and identify individuals who have been in close contact with symptomatic individuals and recommend they receive the MMR vaccine. Additionally, the university has taken steps toward updating its immunization policy for prematriculation to require the following: two doses—Measles, Mumps, Rubella (MMR) vaccine; two doses—Varicella (chicken pox) vaccine; and one dose within 10 years—Tetanus, Diphtheria, Pertussis (Tdap) vaccine. If you have questions or are experiencing symptoms, you are encouraged to contact Temple Student and Employee Health Services at either StudentHealth@temple.edu or EmployeeHealth@temple.edu. Mark Denys, MHA, BS, RN Director Student and Employee Health Services
The 2,285-dose single-day clinic figure is verified by Temple's own statements to ABC News and is one of the most-cited statistics from this outbreak
Outbreak ultimately reached 186 cases, making it the largest U.S. campus mumps outbreak since the 2014 OSU outbreak
Supervisor rule-0 audit (2026-07-18): demoted from isVerbatimConfirmed:true -- verbatimText contains literal '[click-for-email]' placeholder tokens instead of actual transcribed contact information, and the annotations directly contradict each other ('recovered' verbatim vs 'Reconstructed from'), so the exact-transcription evidence bar is not met.
Lane B flip 2026-10-12: answers the 2026-07-18 rule-0 audit. The full April 16, 2019 message (salutation 'To the Temple University community:' through the signature 'Mark Denys, MHA, BS, RN / Director / Student and Employee Health Services') was read from Wayback capture 20190630212012 of the original news.temple.edu announcement. The live now.temple.edu copy cited before has lost characters in a CMS migration (apostrophes in 'university’s', the em dashes, the en dashes in the table's week ranges) and replaces both email addresses with '[click-for-email]' placeholders; the 2019 capture carries StudentHealth@temple.edu and EmployeeHealth@temple.edu, and these are now in the text. The weekly onset table is included, one row per line with a tab between the two cells, and the omitted precautions list, ADDITIONAL RESOURCES, immunization-policy paragraphs and signature are added. Two contradictory annotations ('recovered' and 'Reconstructed from') were removed. Channel left as email: the announcement repost does not show delivery.
Context

Background

Temple University's 2019 mumps outbreak became a national case study in vaccine waning and campus disease transmission. The outbreak began in February 2019 when the Philadelphia Department of Public Health sent its first health alert to medical providers, and Temple's Student and Employee Health Services issued its first university-wide notice on March 22, 2019. By the time the outbreak ended in late May, 186 confirmed cases had been identified — 175 students, 2 faculty members, and 9 individuals connected to but not affiliated with the university. According to Temple Student and Employee Health Services, the majority of confirmed cases involved members of the Temple community who had previously received the MMR vaccine, reflecting the well-documented phenomenon of waning mumps immunity in vaccinated college-age adults. Temple responded by holding mass MMR vaccination clinics across campus; one clinic at Mitten Hall delivered 2,285 doses in a single day. Over the course of the response, Student and Employee Health Services administered more than 6,000 MMR doses. The outbreak prompted Temple to announce that incoming students would be required to be vaccinated against mumps starting the following academic year, a policy change that mirrored similar moves at Indiana University, Harvard, and Ohio State following their own mumps outbreaks in 2014-2017. The outbreak is also notable because Philadelphia health investigators identified shared vaping devices as a likely transmission vector, prompting Temple to specifically warn students against sharing e-cigarettes.
Analysis

Key Findings

186 total confirmed cases, including 175 students, the largest U.S. campus mumps outbreak since OSU in 2014
Temple's MMR clinic at Mitten Hall administered 2,285 vaccinations in a single day, among the largest single-day campus vaccine events on record
The majority of confirmed cases were in previously vaccinated individuals, illustrating the well-documented waning of MMR-induced mumps immunity
Shared vaping devices were identified as a probable transmission vector, an emerging concern for campus public health
Outcome
186 confirmed mumps cases — 175 students, 2 faculty, and 9 unaffiliated individuals. No deaths or hospitalizations were reported. Temple held mass MMR vaccine clinics, ultimately requiring incoming students to be vaccinated starting the following academic year.
Provenance

Sources

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Cite this case

Campus Alert Archive. "Temple University: Shared vaping devices are identified as a transmission route in a mumps outbreak." Incident of March 22, 2019. Added May 2026; last updated October 2026. https://campusalertarchive.com/case/temple-university-mumps-outbreak-2019-03-22/

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Tags
mumpsdisease-outbreakpublic-healthvaccinationmmrtemplepennsylvaniaphiladelphiavapingwaning-immunity
Added May 2026Updated October 2026Via ingestion