Tag Archive: Environmental Monitoring

The Scoop on Ready-to-Eat Foods and Listeria monocytogenes

When summer is in full swing, many of us choose to cool down with sweet frozen dairy treats. However, the thought of ice cream tainted with Listeria monocytogenes may cause anyone, especially those in susceptible populations, to think twice. Listeria…
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Environmental Isolate Case File: Cladosporium cladosporioides

Cladosporium cladosporioides, although generally nonpathogenic, can cause illness. This species, along with Exserohilum rostratum and Aspergillus fumigatus, was one of the pathogens isolated during a multistate outbreak of fungal meningitis due to contaminated sterile medication manufactured by the New England Compounding…
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Environmental Isolate Case File: Pluralibacter gergoviae

Pluralibacter gergoviae can cause big headaches in cosmetic industry laboratories. It is an opportunistic pathogen that has repeatedly been isolated from personal care products. Recently, 15,000 tubes of a popular skin cream product were recalled due to contamination with the…
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Environmental Isolate Case Files: Legionella pneumophila

There are about 20 outbreaks of Legionnaires’ disease each year in the United States.  Most outbreaks occur in buildings with large water systems such as hotels and hospitals. The outbreaks are caused by Legionella pneumophila, a harmless microorganism in a…
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Environmental Isolate Case Files: Serratia marcescens

In 1950, a United States Navy ship spent six days spraying Serratia marcescens into the air two miles off the coast of San Francisco. The spraying was part of a biological weapon test called Operation Sea Spray. Prior to the…
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Environmental Isolate Case Files: Listeria monocytogenes

Ubiquitous in nature, Listeria monocytogenes can be found in many contamination sources making it difficult to eliminate from food processing facilities. Characteristics, such as the ability to grow at refrigerator temperatures, form biofilms, thrive in moist conditions, and remain viable in high…
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Environmental Isolate Case Files: Ralstonia pickettii

If your manufacturing processes utilize purified water or highly purified water, Ralstonia pickettii should be on your list of microorganisms to control. In fact, it has become a microorganism of concern to sterile drug manufacturers because it is capable of passing through…
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Environmental Isolate Case Files: Bacillus cereus

If you have isolated Bacillus cereus in your pharmaceutical manufacturing environment, you are not alone! Bacillus is one of the most common microorganisms cited in U.S. Food and Drug Administration warning letters associated with contamination in pharmaceutical manufacturing. The top…
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Objectionable Microorganisms: Keeping Bad Bugs Out of Good Products

No pharmaceutical company wants to sell a non-sterile drug contaminated with objectionable microorganisms, but how does a company know which organisms are objectionable and how do they ensure their drugs do not contain them? An objectionable organism is one which…
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Environmental Isolate Case Files: Burkholderia cepacia complex

During 2012, an outbreak of Burkholderia cepacia complex spread throughout the intensive care unit of a German hospital. The illness was traced to contaminated alcohol-free mouthwash. Though this event does not mark the first time B. cepacia complex was recovered from…
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