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2 horses in Delaware euthanized after contracting West Nile virus from mosquito bites

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2 horses in Delaware euthanized after contracting West Nile virus from mosquito bites


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  • Two horses in Delaware have been euthanized after contracting West Nile virus.
  • The virus is carried by mosquitoes.
  • The Delaware Department of Agriculture recommends vaccinations for horses and ways to try to prevent mosquito bites.

Two horses have been euthanized after the first cases of West Nile virus in horses this year were confirmed in Delaware.

The Office of the State Veterinarian in the Delaware Department of Agriculture announced the Kent County cases on Sept. 9.

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A 4-year-old Standardbred gelding and a 7-year-old Standardbred mare were euthanized, said Michael Lewis, chief of community relations for the department.

The onset of symptoms in these cases occurred between Aug. 31 and Sept. 1.

West Nile virus is transmitted by mosquito bites, generally in summer and fall, with a peak period for disease transmission from mid-August to mid-October.  

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Signs of infection in horses include fever, although not always present, along with anorexia, head pressing, depression or behavior changes, wobbling or staggering, weakness, blindness, convulsions, hind-limb weakness and muscle spasms in the head and neck.

If owners notice any of these signs in their horses, the Department of Agriculture recommends contacting a veterinarian immediately.

Animal health professionals with formal training in diagnosing or recognizing animal diseases and pests of horses and livestock are required to report suspected or confirmed cases of West Nile virus and Eastern equine encephalitis to the Office of the State Veterinarian within 24 hours.

People can also be infected with West Nile virus, but transmission requires a mosquito bite. The virus cannot be directly transmitted between horses or between horses and people.

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Advice to protect horses from mosquitoes

Horse owners can take steps in the barn and around the farm to help protect horses from mosquito bites including:

  • Keep horses inside during dawn and dusk, peak hours for mosquito activity
  • Apply topical insect repellents labeled for use on horses
  • Use fans in horse stalls to deter mosquitoes
  • Dispose of old tires and containers with standing water
  • Empty, clean and refill water troughs or buckets at least every two to three days to remove mosquito eggs or larvae
  • Contact a veterinarian to ensure they add the West Nile virus and eastern equine encephalitis vaccines to their annual vaccination schedule for 2026

Neither disease has a specific drug treatment. Eastern equine encephalitis in horses is fatal in 70 to 90% of cases. The West Nile virus  in horses if fatal in 30% of cases.

Advice to residents for protection from mosquitoes

The Delaware Department of Agriculture reminds residents to continue taking precautions to avoid mosquito bites, including:

  • Wear light-colored long-sleeved shirts and long pants when outdoors in mosquito-prone areas
  • Apply insect repellent containing 10 to 30% diethyltoluamide (DEET) according to label instructions
  • Avoid mosquito-infested areas and times of peak mosquito activity around dawn, dusk and night

The department recommends that residents eliminate standing water on their property that might have been there for four or more consecutive days because it can be a mosquito breeding habitat.

The mosquito season should end with the first hard freeze.

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Who to contact if mosquito-borne illnesses are suspected

For questions about mosquito-borne illnesses in horses, along with calling a veterinarian, call the Delaware Department of Agriculture at 302-698-4500 and ask for the Poultry and Animal Health Section. 

If people suspect they may have West Nile virus or eastern equine encephalitis, along with calling a doctor, call the Delaware Public Health Office of Infectious Disease Epidemiology at 302-744-4990 Monday to Friday from 8 a.m. to 4:30 p.m., or after hours at 888-295-5196 or email reportdisease@delaware.gov.

Reach reporter Ben Mace at rmace@gannett.com.



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Delaware

Elon Musk-Led Overhaul of Delaware Business Law Upheld by State Court

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Elon Musk-Led Overhaul of Delaware Business Law Upheld by State Court


The Delaware Supreme Court upheld the constitutionality of an Elon Musk-inspired overhaul of state law that governs most major US corporations, handing a win to company founders, insiders and private equity owners who sought less restrictive business rules.



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Delaware County school employee accused of sex assault of minor in Texas

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Delaware County school employee accused of sex assault of minor in Texas


Authorities say a Delaware County school employee is accused of traveling to Texas to sexually assault a minor he met online.

What we know:

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Michael Robinson, 43, was taken into custody near Radnor Middle School where investigators say he worked as a paraprofessional.

Investigators believe Robinson traveled to Tyler, Texas in the summer of 2024 to meet a minor he had connected with online.

Robinson, according to U.S. Marshals, allegedly sexually assaulted the teen over the course of a weekend. 

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Delaware County school employee accused of sex assault of minor in Texas

Prosecutors in Smith County, Texas charged Robinson in December with Aggravated Sexual Assault of a Child Under 15-years-old.

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Robinson is being held at a Delaware County jail where he is awaiting extradition to Texas.

What they’re saying:

U.S. Marshals in Pennsylvania said Robinson’s arrest shows that “sexual predators will always be pursued relentlessly.”

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The Radnor Township School District said Robinson has been placed on leave and will not have contact with students.

“Parents of the limited number of children to whom the employee was assigned were contacted by the administration immediately.”

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The district said it is cooperating with law enforcement and has “no information indicating misconduct involving district students.”

Crime & Public SafetyDelaware CountyNews



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Rehoboth cancels 2026 Polar Bear Plunge after major snowstorm

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Rehoboth cancels 2026 Polar Bear Plunge after major snowstorm


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Rehoboth Beach has canceled the upcoming 2026 Lewes Polar Bear Plunge and 5K Run to the Plunge as the Sussex County resort town continues dealing with the aftermath of last weekend’s snowstorm, organizers of the annual Special Olympics fundraiser said on Feb. 26.

“Rehoboth Beach is navigating significant challenges because of the snowstorm,” a Special Olympics Delaware email announced. “At present, the boardwalk and all beach crossings remain snow covered and many sidewalks throughout downtown Rehoboth are as well.”

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The plunge and 5K had been rescheduled to March 1 after severe weather conditions in late January caused it to be moved from its original Feb. 1 date.

The plunge will not be rescheduled for this year.

Last weekend’s storm brought nearly 2 feet of snow to parts of Sussex, closing hundreds of roads when trees and wires were downed. There were also power outages across the county, including Rehoboth Beach which had to restore power to its wastewater treatment facility.

Plunging for a cause

The polar bear plunge is one of Special Olympics Delaware’s more popular fundraisers, drawing more than 4,000 participants last year.

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In recent years, the event has been bringing in more than a million dollars for Special Olympics Delaware. Last year, plunge events drew $1.3 million, just shy of the record-breaking $1.5 million raised in 2024.

Alex Seymore, Special Olympics Delaware’s director of digital media, said the organization had already raised more than $1 million from this year’s event.

“We expect a small impact,” Seymore told Delaware Online/The News Journal. “But again, we’re showing that we’ve raised over a million dollars.

He added they are reviewing how the cancelation will impact them and their services.

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“It’s been just a couple hours, so we’re not completely positive how it will impact things in the long run,” he said. “We’re thankful for everybody that’s helped raise this money through this time.”

What is still occurring

While the plunge and 5k and been canceled this year, there are other indoor events that will continue as scheduled:

Feb. 27

  • 4 p.m. to 7 p.m. – pick up packets and souvenir sales for the Plunge and 5K Run to the Plunge at the Rehoboth Beach Convention Center, 229 Rehoboth Ave, Rehoboth Beach.

Feb. 28

  • noon to 2 p.m. ​Fire & Ice in the Atlantic Sands Ballroom, 1 Baltimore Ave, Rehoboth Beach.
  • 2:30 p.m. to 5 p.m. Restaurant chili contest.
  • 4 p.m. to 7 p.m. – pick up packets and souvenir sales for the Plunge and 5K Run to the Plunge at the Rehoboth Beach Convention Center, 229 Rehoboth Ave, Rehoboth Beach.

Send tips or story ideas to Esteban Parra at (302) 324-2299 or eparra@delawareonline.com.



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