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Pennsylvania Raw Milk

Outbreak: Pennsylvania Raw Milk Campylobacter 
Product: Raw MilkInvestigation Start Date: 01/24/2012
Location: Maryland, New Jersey, West VirginiaEtiology: Campylobacter jejuni
Earliest known case onset date: 01/14/2012Latest case onset date: 02/01/2012
Confirmed / Presumptive Case Count: 81 / 67Positive Samples: 2

While it is legal to sell unpasteurized raw milk in Pennsylvania and illegal to sell in neighboring Maryland, New Jersey and West Virginia, this outbreak included cases in residents from all of these states. While additional regulations by state officials could be considered, such as monthly pathogen testing, that could reduce the risks associated with consumption of raw milk, the only way to prevent unpasteurized milk–associated disease outbreaks is for consumers to refrain from consuming unpasteurized milk.


The following is the abstract from the published article found here. The full, free text can be found here.

This multistate outbreak of campylobacteriosis was among the largest (148 confirmed and probable cases) nationally in recent years associated with consumption of unpasteurized raw milk and was epidemiologically and molecularly linked to consumption of certified unpasteurized milk from a Pennsylvania dairy.
15 unpasteurized milk samples obtained directly from the dairy during the investigation (but after most of the onsets of the cases) were negative for Campylobacter. However, 2 unopened retail samples collected from Maryland consumers tested at Maryland’s state public health lab, yielded C. jejuni with an indistinguishable PFGE pattern to all clinical isolates. This highlights the importance of testing food and environmental samples linked to actual exposure dates whenever available.
This outbreak occurred despite a state program implemented to reduce the risk associated with raw milk consumption. Although the dairy had tested for Escherichia coli O157:H7 more frequently than required by state regulations, those regulations for testing for other pathogens, such as Campylobacter, was only performed biannually.


Wilson’s Leather Spray

Outbreak: Leather Spray & Respiratory Illness 
Product: Wilson's Leather SprayInvestigation Start Date: 12/27/1992
Location: OR, WAEtiology: Acute Respiratory Illness
Earliest known case onset date: 12/21/1992Latest case onset date: 12/31/1992
Presumptive Case Count: 84Positive Samples: 0


On December 27th, 1992, reports filtered in over the course of several days that people were becoming ill following the use of an aerosol leather conditioner. Symptoms reported included prolonged cough, shortness of breath, pleuritic chest pain, headaches, malaise, chills, and fever. In total, reports increased to 400 persons, involving approximately 550 persons. The product, Wilson’s Leather Protector, was recalled by mid-day on December 27th. Six people were hospitalized.

Click the following link to view the CDC outbreak page.

From the Annals of the IOM

Episode 7: Wilsons Leather Spray. Click the play button to view our informational video on this outbreak!

Wilsons Leather Spray can.
Oregonian piece partway through the outbreak.
Symptoms included prolonged cough, shortness of breath, and pleuritic chest pain. Many persons also reported headaches, malaise, chills, and fever as high as 104 degrees Fahrenheit!
Following the public recall, as of December 31st, the number of preliminary reports to the Oregon Health Division and Oregon Poison Center of illness associated with use of this spray, increased to 400 and involved approximatey 550 persons in at least 17 states.
The technology was different, but it got the job done!