Featured Research

from universities, journals, and other organizations

Fungus in yogurt outbreak poses threat to consumers

Date:
July 8, 2014
Source:
American Society for Microbiology
Summary:
The fungus responsible for an outbreak of contaminated Greek yogurt last year is not harmless after all but a strain with the ability to cause disease, according to research. "When people think about food-borne pathogens, normally they list bacteria, viruses, and maybe parasites. Fungal pathogens are not considered as food-borne pathogens. However, this incidence indicates that we need to pay more attention to fungi. Fungal pathogens can threaten our health systems as food-borne pathogens" says the lead author.

The fungus responsible for an outbreak of contaminated Greek yogurt last year is not harmless after all but a strain with the ability to cause disease, according to research published in mBio, the online open-access journal of the American Society for Microbiology.

Related Articles


In September 2013, customers of Chobani brand Greek yogurt complained of gastrointestinal (GI) problems after consuming products manufactured in the company's Idaho plant. The company issued a recall, and it was believed at the time that the fungal contaminant Murcor circinelloides was only a potential danger to immunocompromised individuals. However, as complaints of severe GI discomfort continued from otherwise healthy customers, researchers began to question the fungus and its ability to cause harm in healthy humans.

"When he heard about the Chobani recall after reports of people becoming sick from yogurt contaminated with Mucor circinelloides, we thought the M. circinelloides strain could cause more serious problems than one might think." says Soo Chan Lee of Duke University, an author on the study.

In the study, the researchers isolated a strain of the fungus from a yogurt container that was subject to recall. Using a technique known as multi-locus sequence typing (MLST), they identified the strain as Mucor circinelloides f. circinelloides (Mcc). Unlike other strains of the fungus, that particular subspecies is commonly associated with human infections.

Whole-genome sequence analysis of the yogurt isolate confirmed it as being closely related to Mcc and also revealed the possibility that this fungus could produce harmful metabolites that were previously unknown in this species. The researchers then tested the strain on mice, where the fungus showed an ability to cause lethal infections when the fungal spores were injected into the bloodstream as well as to survive passage through the GI tract when the spores were ingested orally.

"When people think about food-borne pathogens, normally they list bacteria, viruses, and maybe parasites. Fungal pathogens are not considered as food-borne pathogens. However, this incidence indicates that we need to pay more attention to fungi. Fungal pathogens can threaten our health systems as food-borne pathogens" says Lee.


Story Source:

The above story is based on materials provided by American Society for Microbiology. Note: Materials may be edited for content and length.


Journal Reference:

  1. Soo Chan Lee et al. Analysis of a Food-Borne Fungal Pathogen Outbreak: Virulence and Genome of a Mucor circinelloides Isolate from Yogurt. mBio, July 2014 DOI: 10.1128/mBio.01390-14

Cite This Page:

American Society for Microbiology. "Fungus in yogurt outbreak poses threat to consumers." ScienceDaily. ScienceDaily, 8 July 2014. <www.sciencedaily.com/releases/2014/07/140708092918.htm>.
American Society for Microbiology. (2014, July 8). Fungus in yogurt outbreak poses threat to consumers. ScienceDaily. Retrieved April 19, 2015 from www.sciencedaily.com/releases/2014/07/140708092918.htm
American Society for Microbiology. "Fungus in yogurt outbreak poses threat to consumers." ScienceDaily. www.sciencedaily.com/releases/2014/07/140708092918.htm (accessed April 19, 2015).

Share This


More From ScienceDaily



More Plants & Animals News

Sunday, April 19, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Un-Bee-Lievable: Bees on the Loose After Washington Truck Crash

Un-Bee-Lievable: Bees on the Loose After Washington Truck Crash

Reuters - US Online Video (Apr. 17, 2015) A truck carrying honey bees overturns near Lynnwood, Washington, spreading boxes of live bees across the highway. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Our Love Of Puppy Dog Eyes Explained By Science

Our Love Of Puppy Dog Eyes Explained By Science

Newsy (Apr. 17, 2015) Researchers found a spike in oxytocin occurs in both humans and dogs when they gaze into each other&apos;s eyes. Video provided by Newsy
Powered by NewsLook.com
Dog Flu Spreading in Midwestern States

Dog Flu Spreading in Midwestern States

AP (Apr. 17, 2015) Dog flu is spreading in several Midwestern states. Dog daycare centers and veterinary offices are taking precautions. (April 17) Video provided by AP
Powered by NewsLook.com
Raw: Rare Whale Spotted in Gulf of Mexico

Raw: Rare Whale Spotted in Gulf of Mexico

AP (Apr. 17, 2015) Researchers from the E/V Nautilus had quite a surprise Tuesday, when a curious sperm whale swam around their remotely operated vehicle in the Gulf of Mexico. Cameras captured the encounter. (April 17) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins