Stories From the Field

These stories illustrate the work CDC and its partners do to advance public health across the United States and around the globe.

CDC experts work with states, countries, and other partners to detect and respond to outbreaks, train professionals and strengthen health systems, and create programs that increase the safety of people’s food, water, and environment.

Featured Stories
Image of CDC epidemiologists

CDC partners with a private hospital in Nairobi to contain Candida auris

In May 2019, the Kenya Ministry of Health requested help from CDC to investigate a potential case of Candida auris infection at a private hospital in Nairobi. This investigation led to a successful collaboration between the hospital’s staff and CDC to identify and contain the spread of this emerging pathogen.

Volunteers building a house

U.S. Volunteers Get Sick from Fungus in Soil after Building Houses

A group of U.S. volunteers who traveled on service trips to Mexico to build houses returned home with more than the satisfaction of a job well done. They contracted Valley fever (also called coccidioidomycosis), an infection caused by a fungus that lives in the soil where they were working.

Sierra Leone water analyst in training

CDC Pilots WASH Training for Outbreak Response in Sierra Leone

Officials in Sierra Leone are looking to CDC’s water, sanitation, and hygiene (WASH) training and its new global toolkit to help them build a strong infrastructure and workforce and be better prepared for future disasters or outbreaks.

Previous Stories

image of cow and horse for e.coli story

Community Discussions Key to Solving E. coli Outbreak

In July 2017, an outbreak of Escherichia coli O157 (E. coli O157) infections sickened young children in a small community on the border of Utah and Arizona.

SoyNut Butter
Protecting Children: Early Clues Help Quickly Solve Outbreak of E. coli Infections
Prompt action by CDC and its public health partners in early 2017 helped stop a fast-moving foodborne outbreak of Shiga toxin-producing Escherichia coli O157:H7 (STEC O157:H7) infections.

PulseNet 20 year anniversary
States use PulseNet to identify and solve outbreaks
States use PulseNet to identify and solve outbreaks of E. coli, Salmonella, Listeria, and Campylobacter, and other foodborne infections. In many cases, investigations lead to product recalls. As PulseNet celebrates its 20th anniversary, learn more about how this national laboratory network managed by CDC has helped protect the public’s health.

Transforming public health microbiology with whole genome sequencing for foodborne diseases
CDC is upgrading to a single, fast, and efficient whole genome sequencing process. This project will provide more reliable information about the germs that cause most illnesses associated with food, helping increase food safety in the United States and globally.

How much faster are CIDT's?
FoodCORE Centers and Real-World Use of GI CIDTs: Adapting to Changes in Clinical Diagnostics
The use of rapid tests to diagnose foodborne illness pose challenges to monitoring illnesses and progress toward preventing foodborne diseases. FoodCORE centers are making changes so they can continue to identify and investigate foodborne disease outbreaks efficiently.

Cow and milk
Innovative Product Testing Method Solves Outbreak Linked to Raw Milk
It is difficult to detect Campylobacter in raw milk, so Utah health agencies collaborated with partners to use a new sampling method to test raw milk for the outbreak strain. Their determination to confirm the source of the outbreak and success of this sampling methods stopped the outbreak and prevented additional illnesses.

potato salad
Quick Response to Botulism Outbreak Saves Lives
Botulism paralyzes or kills quickly. Just one case is a public health emergency, because it can signal an outbreak. That’s why CDC’s botulism clinical consultation service is on call 24/7.

photo of long road
Tennessee and Colorado Successfully Collaborate Despite being Miles Apart
Strong collaboration was key for the Colorado and Tennessee FoodCORE centers when investigating a Salmonella outbreak at a summer camp in Colorado. Teamwork is an important piece of the FoodCORE program. FoodCORE centers collaborate internally between laboratorians, epidemiologists, and environmental health specialists as well as externally with other centers and health departments.

Caramel Apples
Whole Genome Sequencing Pinpoints Source of Listeriosis Outbreak
Seven people died and 34 were hospitalized during a multistate listeriosis outbreak in fall 2014.  Investigators needed to know which cases of listeriosis were related to find the source of the outbreak. Whole genome sequencing, a laboratory technology that allows for detailed comparison of germs, helped investigators find the source of the outbreak sooner than if they only used traditional lab technologies.

woman using cellphone eating
Using Online Restaurant Reviews to Find Local Foodborne Outbreaks
Local health departments detect many foodborne outbreaks through illness complaint systems. The public, however, may not use these systems or may not be aware of them. Staff at the New York City Department of Health and Mental Hygiene worked with Columbia University and Yelp, an online review site, to pilot a project to identify foodborne outbreaks that may go undetected through traditional complaint systems.

boy in cameroon taking cholera vaccine

CDC Fights Cholera in Cameroon

Working with WHO and global partners, CDC helped Cameroon launch its largest oral cholera vaccine campaign, helping more than 127,000 at high risk of the disease.

Sea Otter swimming on his back in water
Poisoned Sea Otters in California
California scientists and veterinarians found themselves in the middle of a mystery. Over the span of a year, 11 dead or dying sea otters had been found around Monterey Bay, California. The sea otters’ gums had turned yellow and they had swollen livers, but when scientists and veterinarians tested for common diseases that can affect the liver, they didn’t find anything. They started exploring other possibilities and finally found a clue—a positive lab test revealed that the sea otters had died of something called microcystin. Microcystin is a toxin given off by a type of phytoplankton called cyanobacteria, also commonly known as “blue-green algae.”

solar concentrator

Using Solar Energy to Treat Waste in Kenya

Refugee camps are often crowded, making it essential—but difficult—to provide adequate infrastructure for safe drinking water and sanitation. Solar sanitation is an inexpensive, innovative, and effective form of waste treatment that uses concentrated solar energy to treat waste so it can be safely discarded or potentially used for fertilizer or fuel. This is a critical component of a holistic waste management system that will ensure latrines are emptied, maintained clean, and reused—conserving space in the camp and reducing open defecation.


Defeating Diarrhea: CDC and Partners Tackle Causes and Consequences in Kenya and Beyond

“What if we lost 50 city buses full of children today?” asks Michael Beach, the associate director for healthy water in CDC’s National Center for Emerging and Zoonotic Infectious Diseases. “That’s 2,195 children—the number who die daily of diarrhea around the world. That’s more than die from AIDS, malaria, and measles combined.”

A hollowed out tree in the woods.
Histoplasmosis outbreak at Louisiana campsite: CDC partners with state health department to respond
In November 2018, what seemed like a normal camping trip led to a fungal disease outbreak. A group of campers in Louisiana got sick with what turned out to be histoplasmosis, an infection caused by the environmental fungus Histoplasma.

Thumbnail version of stopping c. auris in hospital story
Stopping C. auris in an Oklahoma Hospital
When an Oklahoma hospital identified a patient with the multidrug-resistant fungus Candida auris in April 2017, the Centers for Disease Control and Prevention and the state Health Department worked with hospital staff to rapidly identify other cases and stop its spread.

Candida auris
C. auris: CDC’s Response to a Global Emerging Threat
Candida auris (C. auris) is a multidrug-resistant fungus that can cause serious infections and even death. CDC alerted U.S. healthcare facilities to the risk that C.auris could spread between patients in hospitals, and continues to work with partners to better contain and prevent its spread.

cocci map
Improving Antibiotic Prescribing with Rapid Diagnostics and Education
People who get Valley fever are often misdiagnosed with bacterial pneumonia and given antibiotics. However, Valley fever is caused by a fungus, so antibiotics will not work. CDC is working to help healthcare providers better diagnose Valley fever, in part by supporting development of rapid diagnostic tests that can quickly provide clinicians with the information they need to appropriately treat patients.

fungus Coccidioides
Investigating the Expanding Geographic Range of Coccidioides into the State of Washington
In the past, scientists believed that Coccidioides, the fungus that causes valley fever, only lived in the Southwestern United States and parts of Latin America. However, cases of valley fever have recently been found in people in the south-central region of Washington State. CDC has been developing new tools that make it faster and easier to detect Coccidioides in the environment.

Photomicrograph of Exserohilum rostratum
Tracking the Long-term Progress of Patients Affected in the Multistate Fungal Meningitis Outbreak
After an unprecedented outbreak of fungal meningitis associated with contaminated steroid injections from a compounding pharmacy, CDC and partners are studying long-term outcomes for those patients.

Photomicrograph of Rhizopus oryzae
Fatal Gastrointestinal Fungal Infection Following Use of a Contaminated Dietary Supplement
CDC, FDA, and state health departments investigated a fatal case of gastrointestinal mucormycosis caused by Rhizopus oryzae in a premature infant.

Image of a Globe

Fighting a Deadly Fungus: Preventing deaths from Cryptococcus

The fungus Cryptococcus causes life-threatening meningitis in hundreds of thousands of people every year. Most of these infections occur in sub-Saharan Africa. In countries with large populations of people living with HIV/AIDS, CDC is helping implement targeted cryptococcal screening programs and build laboratory capacity to detect cryptococcal infections early.

Dominican Republic Histoplasmosis Tunnel

Disease Detectives Investigate a Histoplasmosis Outbreak in the Dominican Republic

Outbreaks of histoplasmosis have been described in North, Central, and South America after activities that stir up soil or large amounts of bird or bat droppings. However, there had never been a known histoplasmosis outbreak in the Dominican Republic. In September 2015, a number of previously healthy young men were hospitalized with fever, headache, and cough, and the Dominican Republic Ministry of Health suspected the cause was histoplasmosis.

MiSeq whole genome sequencer machine with CDC scientist working in the foreground
CDC Works to Improve Cryptosporidium Tracking in the United States
In the United States, the parasite Cryptosporidium sickens almost 750,000 people each year with watery diarrhea that can last for weeks. In 2010, CDC launched CryptoNet to collect Cryptosporidium DNA fingerprinting results. CryptoNet is the first tracking and DNA fingerprinting system for a disease caused by a parasite. It has provided valuable information on the different Cryptosporidium species infecting people in the United States.