University of Georgia
Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors

Tag: Ynes Ortega

Behavior of Escherichia coli and Salmonella Enteritidis in Cilantro Crops (Coriandrum sativum L.) and the Antimicrobial Effect of Salvia officinalis Essential Oil

Donna Huber on August 12, 2026

  Fresh, ready-to-eat vegetables are susceptible to contamination by several bacterial pathogens. This study evaluated the behavior of inoculated Escherichia coli and Salmonella Enteritidis (7 Log10 CFU/g) through viable cell counts on eosin methylene blue (EMB) and brilliant green agar (BGA) in soil, seeds, and cilantro plants. Samples were analyzed at 2 h, 3, 7, 15, and 60 days (d) …

In the News: Ynes Ortega

Donna Huber on July 14, 2026

Dr. Ynes Ortega’s laboratory is focused on parasites that have been associated with food- and waterborne outbreaks. Because of current practices in the production and processing of food products, there is a need for studies aimed at the dynamics of disease transmission. Ortega was part of the team that first identified Cylospora as a human …

Microbiological Risks in Sauces and Dressings: A Review

Donna Huber on June 16, 2026

The global sauce market continues to expand, driven by increased consumption, international trade, and development of new formulations. As a result, ensuring the microbiological safety of sauces has become increasingly important. Although sauces are often considered as low-risk products due to factors such as the presence of preservatives, high acidity, low water activity, and high …

Progress Toward Eradication of Dracunculiasis (Guinea Worm Disease) – Worldwide, January 2024-June 2025

Donna Huber on January 1, 2026

Dracunculiasis (Guinea worm disease), caused by the parasite Dracunculus medinensis, is acquired by drinking water containing small water fleas infected with D. medinensis larvae or eating inadequately cooked aquatic animals. Efforts to eradicate D. medinensis, including the Guinea Worm Eradication Program (GWEP), began at CDC in 1980. In 1986, with an estimated 3.5 million cases …

Survival of Salmonella and Shiga Toxin-producing Escherichia coli and Changes in Indigenous Microbiota During Fermentation of Kombucha Made from Home-brewing Kits

Donna Huber on April 14, 2021

Survival and growth of Salmonella and Shiga toxin-producing Escherichia coli (STEC) in kombucha prepared from four brands of commercially available kombucha kits intended for use by home brewers were investigated. Changes in microbiota responsible for fermentation were also determined. An initial population of Salmonella (6.77 log CFU/mL) decreased to below the detection limit (0.30 log …

Ynes Ortega receives grant to study Cyclospora presence in the U.S.

Donna Huber on May 5, 2020

Historically, Cyclospora infection in the United States has been associated with imported fresh produce. However, in 2018, the U.S. saw two significant outbreaks associated with vegetables grown in the United States. “We had more than 2,000 non-travel associates cyclosporiasis cases,” said Ynes Ortega, member of the Center for Tropical and Emerging Global Diseases and associate …

Mitochondrial genome sequence variation as a useful marker for assessing genetic heterogeneity among Cyclospora cayetanensis isolates and source-tracking

Donna Huber on January 21, 2019

Abstract BACKGROUND: Cyclospora cayetanensis is an important enteric pathogen, causing diarrhea and food-borne cyclosporiasis outbreaks. For effective outbreak identification and investigation, it is essential to rapidly assess the genetic heterogeneity of C. cayetanensis specimens from cluster cases and identify the likely occurrence of outbreaks. METHODS: In this study, we developed a quantitative PCR (qPCR) targeting …