Norovirus Outbreak Affects Hikers on Pacific Crest Trail

A recent outbreak of the highly contagious norovirus has impacted numerous hikers along the Pacific Crest Trail (PCT) near Los Angeles. This situation has resulted in at least one air rescue and has caused local communities to adopt health precautions.

Norovirus, known to be a common culprit of foodborne illnesses in the U.S., can lead to symptoms like nausea, vomiting, and diarrhea—not to mention the risk of severe dehydration. It spreads through direct contact with infected individuals or contaminated surfaces and food. Interestingly, hand sanitizer is often ineffective against this virus. The Centers for Disease Control and Prevention (CDC) recommends washing hands thoroughly with soap and water instead.

Typically, norovirus cases peak between November and April. However, an alarming number of hikers around Wrightwood, California—a spot just about an hour from downtown L.A.—have reported illness in the past week. The virus seems to be circulating among PCT hikers, which is concerning given the nature of outdoor environments where sanitation can be challenging. Just last summer, hikers on the Appalachian Trail faced a similar outbreak, and another incident in Grand Canyon National Park affected over 200 individuals.

One hiker, Noelle Harrison, remarked on the virulence of norovirus, likening it to “the cockroach of viruses.” She underscored that getting sick in remote places can be particularly distressing, given the severity of symptoms.

Reports began surfacing around May 8, with many hikers falling ill. While many healthcare facilities don’t typically test for norovirus, those treated at local urgent care facilities were informed that they likely had it. Approximately two dozen hikers have shown symptoms, with at least seven confirmed cases.

Ron Hals, a 73-year-old retiree, is one of those affected. After losing his wife, he set out to hike the first 1,000 miles of the PCT as a way to challenge himself. Upon reaching Wrightwood and hiking over 370 miles, he suddenly became very ill one night. Hals described feeling extraordinarily weak, struggling to even leave his tent. He ended up calling for help, but despite wanting to recover on his own, a rescue team arrived and took him to a medical facility where he was diagnosed with norovirus.

After being discharged, Hals found himself without his gear and with few belongings. He had to hire a driver for a ride to a motel, where he’s been recovering while he organizes the return of his hiking equipment. Notably, he expressed a desire to finish his journey, stating that despite the challenges, he is seeking adventure in his golden years.

The outbreak’s origin remains uncertain, though early indications point to a water cache in Swarthout Valley. This area serves hikers by providing water and supplies, and two people seen there earlier were symptomatic. In response, volunteers have replaced water supplies with sealed bottles to mitigate risk.

Health department representatives have been monitoring the situation. While a public health spokesperson acknowledged one reported case, they stated that no significant clusters of norovirus cases have been detected beyond what’s usual for the area. However, there is ongoing vigilance regarding potential outbreaks.

Local businesses, meanwhile, are taking steps to ensure cleanliness. Establishments like hardware and grocery stores in Wrightwood have stepped up sanitization efforts as a precaution.

Alongside these developments, Teri Okarma from Angeles Crest Christian Camp, which accommodates hikers, revealed they are temporarily closing camp to ensure the safety of their staff and visitors. They continue to assist hikers needing transport off the trail.

The Pacific Crest Trail Association is also aware of the outbreak and is working with health officials to support affected hikers, emphasizing the seriousness of communicable diseases.

As the situation evolves, many hope for a swift recovery for those impacted while looking for ways to help ensure the health and safety of all outdoor enthusiasts.