A total of 60 people likely were sickened during an E. coli outbreak at the Milk Makers Fest in April, according to a report issued Friday, Oct. 30, by the Centers for Disease Control and Prevention.
About 1,325 Whatcom County first-grade students, plus the teachers and parents who accompanied them, from all school districts in Whatcom County went to the annual event April 21-23 at the Northwest Washington Fairgrounds in Lynden.
The event was designed to introduce young students to farming. It also gave them a chance to pet farm animals, including small horses, sheep, rabbits, chickens and a calf. There was a hay maze and scavenger hunt as well.
People who helped set up and take down the event — on April 20 and April 24 — also were among those who were sickened.
The new report provided additional details about the incident.
A preliminary report was put out in June by health officials investigating the outbreak, and the findings were similar. Whatcom County and state health departments as well as the CDC were the investigators.
The CDC’s Oct. 30 report found that:
People who attended the Lynden event later spread E. coli to 20 people who didn’t attend.
▪ Of the total number of people who were ill, 25 were confirmed through tests and 35 were probable. Eleven were hospitalized. Six developed hemolytic uremic syndrome, a life-threatening complication. There were no deaths.
In the earlier stages of the investigation, health officials identified cases that were confirmed or probable. Then they switched to confirmed cases only. The latest report returned to tracking both types of cases.
▪ Forty people who attended the event were sickened — 35 first-graders, three high school students, one parent and one teacher.
Twenty secondary cases — people who had contact with someone who went to the Milk Makers Fest — were identified in 14 siblings, four caretakers and two cousins of those who went to the event, the CDC wrote.
▪ The strain of Shiga toxin-producing E. coli 0157: H7 that caused an outbreak was found in the north end of the dairy barn where the Milk Makers Fest was held, which was reported previously.
“Animals, including cattle, had been exhibited in the barn during previous events. Before the dairy education event, tractors, scrapers, and leaf blowers were used to move manure to a bunker at the north end of the barn,” the CDC reported stated.
▪ While it wasn’t possible to disinfect the barn, steps could have been taken to minimize risk, including hand-washing.
“Students attending the setup and breakdown might have had higher rates of illness because they consumed food in the barn and might not have washed their hands before eating,” the CDC stated. “Facility cleaning procedures and location of the manure bunker (inside the barn) might have contributed to an increased risk for infection among the attendees.”
As a result of the E. coli outbreak, organizers of the Northwest Washington Fair placed greater emphasis on hand-washing during the annual fair in August.
That included doubling the number of hand-washing stations, talking to fair-goers about the importance of washing their hands and reminding people in barns to avoid eating or putting their fingers in their mouths while in animal exhibit areas.
Reach Kie Relyea at 360-715-2234 or firstname.lastname@example.org.