Outbreak Summer: Vacation Souvenirs You Never Wanted

This summer has been anything but quiet for infectious diseases. In this episode of Contagion Podcast, hosts Drs. Vivian Vega and Jackie Sherbuk take listeners on a fast-paced tour through the outbreaks, emerging threats, and public health stories that have dominated conversations among infectious disease specialists—and increasingly, the general public.

The episode begins with the nationwide Cyclospora outbreak, examining why this foodborne parasite has become one of the summer's biggest public health stories. The hosts explain how contaminated produce, long incubation periods, and complex food distribution networks make outbreak investigations particularly challenging, while providing practical advice on diagnosis, treatment, and prevention.

Next, they explore the remarkable Andes hantavirus outbreak linked to an expedition cruise in Patagonia. This unusual event highlights the only hantavirus known to spread from person to person and serves as a fascinating case study in how ecotourism, international travel, and delayed symptom onset can complicate outbreak investigations across multiple countries.

The conversation then shifts to one of the most extraordinary success stories in public health: the battle against the New World screwworm. Listeners will discover how millions of sterile flies have been used to eradicate one of history's most destructive livestock pests—and why climate change, wildlife movement, and border challenges now threaten decades of success.

The hosts also review the ongoing Legionnaires' disease outbreak in New York City, discussing how modern environmental surveillance, rapid public health response, and laboratory testing work together to control urban outbreaks before they expand further.

Attention then turns to the rapidly expanding Ebola outbreak in the Democratic Republic of the Congo, where the rare Bundibugyo strain presents new challenges because currently available vaccines and therapies are not proven to work against it. The discussion highlights the importance of surveillance, contact tracing, community trust, and ongoing clinical trials in outbreak response.

Finally, the episode examines how public health agencies prepared for infectious disease threats during the 2026 FIFA World Cup, from measles and respiratory viruses to wastewater surveillance, social media monitoring, and behind-the-scenes coordination that helps keep millions of travelers safe.

Blending humor, clinical insight, and real-world epidemiology, this episode offers an engaging look at the infectious disease stories shaping the summer of 2026. Whether you're a healthcare professional, student, or simply curious about emerging health threats, you'll gain a deeper appreciation for the science, surveillance, and public health efforts that work quietly behind the scenes to protect us all.

Dr. Vega would like to thank her friend Job Meiller for his musical contributions, "Hotel California," and "Can't Get You Out of My Mind," to our segment breaks. Thank you, Job!

Thanks also to Dr. Ana Velez, our artistic contributor, for her artwork utilized in our episode thumbnail, "The Mouse Who Never Meant to Harm."