Dr. Laura Gieraltowski leads the Foodborne Outbreak Response Team in the Outbreak Response and Prevention Branch at the U.S. Centers for Disease Control and Prevention (CDC) in Atlanta, GA. She leads the team that helps coordinate the national network of epidemiologists and other public health officials who investigate outbreaks of foodborne and other enteric illnesses.

​Laura is a graduate of CDC's Epidemic Intelligence Service Program. She received a Ph.D. in epidemiology from the University of Pittsburgh Graduate School of Public Health and has a Masters of Public Health degree in behavioral health sciences from Emory University Rollins School of Public Health. She has worked at the CDC since 2009 and has been involved in numerous multistate outbreak investigations leading to the identification and recall of food products.

In this episode of Food Safety Matters, we speak to Laura [14:39] about:

• CDC's role in foodborne outbreak investigations
• How CDC works with the U.S. Food and Drug Administration and the U.S. Department of Agriculture
• Pulsed-field gel electrophoresis vs. whole-genome sequencing, and why the former is no longer the standard method for DNA fingerprinting when investigating a foodborne outbreak
• How outbreak investigations become more or less complicated depending on what type of food product is involved
• Changes and advancements coming to food safety within the next 5–10 years

News Mentioned in This Episode
FDA Issues First Foreign Supplier Verification Program Warning [1:35]
FDA Tests Romaine Lettuce in Yuma Growing Region for Pathogens [3:56]
USDA to Consumers: Do Not Wash Raw Poultry [7:55]

Brittney Miller is President of Manchester Farms, America's first quail farm. What started over 40 years ago as a backyard hobby has grown into a nationally recognized, family-owned business that produces more than 80,000 quail weekly, raising them responsibly, without antibiotics or hormones, and shipping premium products to chefs, retailers, and home cooks across the country. Brittney's story is about more than farming: it is about stewardship, innovation, and family values. She combines her passion for sustainable agriculture with modern food safety standards. Her SQF Level 2 certified, HACCP-compliant farm sets the benchmark for quality in specialty poultry.

Mindy Brashears, Ph.D. is the USDA's Under Secretary for Food Safety. Dr. Brashears previously served as Under Secretary for Food Safety from 2020–2021, and Deputy Under Secretary in 2019. Dr. Brashears returns to USDA from Texas Tech University, where she was a Paul Whitfield Horn Distinguished Professor of Food Safety and Public Health, the Roth and Letch Family Endowed Chair for Food Safety, and the Director of the International Center for Food Industry Excellence.

Justin Ransom, Ph.D. is Administrator of USDA's Food Safety and Inspection Service (FSIS), where he oversees FSIS' mission to ensure the safety, wholesomeness, and proper labeling of America's commercial supply of meat, poultry, and processed egg products. He leads the agency's modernization efforts, streamlining inspection systems, strengthening public health protections, and advancing science-based policies. 

Elena Medo, M.B.A. is an entrepreneur, researcher, and inventor who has spent nearly 40 years transforming neonatal care through leadership and innovation. She has secured numerous patents, raised over $40 million across four companies, and built a legacy of firsts, including the first commercially available shelf-stable donor breast milk product; the first milk bank owned exclusively by nursing mothers; and the first medical device designed to analyze human milk. Today, as CEO and co-founder of Leonie Health PBC, established in 2023 with her daughter, Adrianne Weir, Elena is developing a revolutionary product that replicates the immune properties of colostrum to protect preterm infants against the three deadliest neonatal infections—necrotizing enterocolitis (NEC), ventilator-associated pneumonia (VAC), and sepsis—which together claim the lives of more than 30,000 hospitalized infants per year.

Alissa Welsher, Ph.D. is a Senior Consultant at Elanco Poultry Food Safety. Dr. Welsher received a bachelor’s degree in biological sciences from the University of Pittsburgh, as well as a master’s degree in poultry science and a Ph.D. in cell and molecular biology from the University of Arkansas. Her area of expertise is meat and poultry food safety, and she specializes in integrated pest management (IPM).

Lyle Probst is the CEO of NomadX and an accomplished entrepreneur with more than 25 years of experience in operations, product development, engineering, biodefense, and advanced technology commercialization.

Alex LeBeau, Ph.D., M.P.H., CIH is the owner of Exposure Assessment Consulting LLC in Orlando, Florida, where he offers toxicology, industrial hygiene, risk assessment, and public health consulting services. Over his 13-year career, he has evaluated environmental and occupational exposures and has performed toxicological evaluations of chemicals and biological agents. He has also performed human health risk assessments of contaminated sites using U.S. Environmental Protection Agency (EPA) and state regulatory guidelines and has monitored remediation activities at those sites. To evaluate the exposure impacts on building occupants, he has performed indoor environmental quality assessments, including Legionella and water quality assessments, at healthcare, residential, and industrial facilities.