Tag Archive: Environmental Isolates

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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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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Environmental Isolate Case Files: Staphylococcus epidermidis

Staphylococcus epidermidis colonizes moist body surfaces such as the axillae, nares and toe webs. Normally a harmless species, S. epidermidis can cause clinical disease under the right circumstances. Predisposing factors include immunosuppression and the presence of a medical device such as…
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Environmental Isolate Case Files: Acinetobacter baumannii

Acinetobacter baumannii is one of the top causes of hospital-acquired infections. Most at risk for illness are the elderly and the chronically ill. Like an unwelcome guest, A. baumannii is difficult to remove once it moves into a health care…
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Environmental Isolate Case Files: Micrococcus luteus

As a pharmaceutical microbiologist, you are probably no stranger to Micrococcus luteus since it is among the most commonly found organisms in pharmaceutical environmental monitoring. The strain is typically associated with human skin, particularly from the head, arms and legs; consequently,…
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