September 20, 2025

First Human Death from Eastern Equine Encephalitis in South Carolina

Beaufort County, September 20, 2025

News Summary

The South Carolina Department of Public Health has reported the first human death from the Eastern Equine Encephalitis Virus (EEE) in over two decades. The virus, transmitted by infected mosquitoes, can cause severe neurological complications. Health officials are urging the public to adopt protective measures against mosquito bites. In response to this tragedy, local mosquito control has begun extensive spraying and testing to combat the outbreak. The absence of vaccines or effective treatments for EEE emphasizes the importance of prevention methods.

Beaufort County, South Carolina – The South Carolina Department of Public Health has confirmed the first human death from the Eastern Equine Encephalitis Virus (EEE) in more than 20 years. The tragic incident occurred on Friday, September 19, marking the first human case of EEE in South Carolina since 2020.

The EEE virus is transmitted to humans primarily through the bite of an infected mosquito. It is important to note that the virus is not transmissible from person to person. Health officials are sounding the alarm, as infection can lead to febrile illness without neurological symptoms or, more drastically, severe neurological complications such as encephalitis or meningitis due to brain inflammation. The death rate from severe EEE cases is approximately 30%, and many survivors experience long-term neurological problems.

There are currently no vaccines or specific treatments available for the EEE virus in humans, emphasizing the importance of preventive measures. Dr. Edward Simmer, the interim director of public health, stressed the seriousness of the disease and urged the public to take steps to protect themselves from mosquito bites.

In response to the confirmed case, the Beaufort County Mosquito Control has implemented several measures, including multiple truck sprays. Plans are underway for helicopter usage to ensure broader coverage to combat mosquito populations. Additionally, the county will set up mosquito traps for EEE virus testing in the area. Although no EEE-positive mosquitoes had been detected near the site of the human case in 2025, reports indicate that 10 EEE-positive horses have been confirmed in other counties.

The South Carolina Department of Public Health collaborates with the Centers for Disease Control and Prevention (CDC) to monitor mosquito-borne diseases through extensive testing and surveillance efforts. To combat mosquito breeding, they advise that stagnant water which has been standing for more than five days should be eliminated.

As a further precaution, residents are encouraged to adopt protective measures against mosquito bites. Recommendations include wearing long sleeves, using EPA-registered repellents, and treating clothing with permethrin. Local mosquito control programs are managed by city or county governments, while the Department of Public Health provides vital information and guidance for public health and safety.

About Eastern Equine Encephalitis Virus

The Eastern Equine Encephalitis Virus is a mosquito-borne virus that poses significant health risks. Its transmission to humans can vary in severity, ranging from mild febrile illness to life-threatening neurological complications. Given the absence of a vaccine or effective treatment, prevention through avoidance of mosquito bites is critical.

Public Health Recommendations

Wear long sleeves and pants.
Use EPA-registered insect repellents.
Treat clothing with permethrin.
Eliminate stagnant water sources where mosquitoes can breed.
Engage local mosquito control programs for assistance.

FAQs

What is Eastern Equine Encephalitis Virus (EEE)?

The EEE virus is transmitted to humans through the bite of an infected mosquito. Infection can result in a febrile illness without neurological symptoms or lead to severe neurological issues such as encephalitis or meningitis due to brain inflammation.

What percentage of individuals with severe EEE die?

Approximately 30% of individuals who develop severe EEE die, and many survivors suffer long-term neurological problems.

Are there treatments available for EEE in humans?

There are no vaccines or specific treatments available for EEE virus in humans.

What precautions should I take to avoid mosquito bites?

Recommendations for personal protection against mosquito bites include wearing long sleeves, using EPA-registered repellents, and treating clothing with permethrin.

Deeper Dive: News & Info About This Topic

HERE Resources

First Death from Eastern Equine Encephalitis in Beaufort County
First Death from Eastern Equine Encephalitis Reported in Beaufort County
First Eastern Equine Encephalitis Death in Beaufort County
First Human Death from Eastern Equine Encephalitis in Beaufort County
First Human Death from Eastern Equine Encephalitis Confirmed in Beaufort County
Beaufort County Reports First Confirmed Death from EEE Virus

Additional Resources

Author: STAFF HERE BEAUFORT

The HERE Beaufort Staff Writers are a collaborative team of journalists, editors, and local contributors passionate about delivering accurate, timely information to the Beaufort community. As part of the HEREcity.com Network, which powers over 100 U.S. city sites including HEREcolumbia.com, our staff draws on collective experience in South Carolina journalism to cover everything from business sales and real estate developments to dining deals and community initiatives. Our Expertise and Background: Local Roots in Beaufort : Our team includes lifelong Beaufort residents and SC natives with deep knowledge of the area’s history, economy, and culture. We’ve covered key events like the recent sale of the historic Crofts Block Building, Beaufort’s equestrian heritage, and growth in local tech and education sectors (e.g., BeaufortTechnical College programs). Collective Experience: With over 50 combined years in journalism, our staff has backgrounds in print, digital media, and community reporting. We prioritize fact-based stories, drawing from sources like the Beaufort Chamber of Commerce, city government records, and on-the-ground interviews. Commitment to Quality: Every article is a group effort, involving research, editing, and verification to ensure reliability. We adhere to journalistic standards, citing credible sources and updating content as new details emerge.

STAFF HERE BEAUFORT

The HERE Beaufort Staff Writers are a collaborative team of journalists, editors, and local contributors passionate about delivering accurate, timely information to the Beaufort community. As part of the HEREcity.com Network, which powers over 100 U.S. city sites including HEREcolumbia.com, our staff draws on collective experience in South Carolina journalism to cover everything from business sales and real estate developments to dining deals and community initiatives. Our Expertise and Background: Local Roots in Beaufort : Our team includes lifelong Beaufort residents and SC natives with deep knowledge of the area’s history, economy, and culture. We’ve covered key events like the recent sale of the historic Crofts Block Building, Beaufort’s equestrian heritage, and growth in local tech and education sectors (e.g., BeaufortTechnical College programs). Collective Experience: With over 50 combined years in journalism, our staff has backgrounds in print, digital media, and community reporting. We prioritize fact-based stories, drawing from sources like the Beaufort Chamber of Commerce, city government records, and on-the-ground interviews. Commitment to Quality: Every article is a group effort, involving research, editing, and verification to ensure reliability. We adhere to journalistic standards, citing credible sources and updating content as new details emerge.

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