Dozens of hikers along a popular section of the Pacific Crest Trail (PCT) near Los Angeles have fallen ill with a highly contagious stomach virus, suspected to be norovirus. Since early May, approximately two dozen cases of gastrointestinal illness have been reported in the Wrightwood area, about 76 miles outside Los Angeles, according to local reports.
Outbreak Details and Suspected Cause
The exact cause of the outbreak has yet to be confirmed through lab testing, but health officials suspect norovirus, commonly known as the stomach bug. The Pacific Crest Trail Association confirmed on Wednesday that it is aware of the illnesses and is collaborating with the San Bernardino County Department of Public Health to assess the situation. The association stated it intends to share information publicly as soon as it becomes available.
Norovirus spreads through direct contact with infected individuals, contaminated surfaces, or consumption of contaminated food and water. Handwashing is the most effective measure to prevent infection, as hand sanitizers alone cannot kill the virus on skin.
Hiker's Ordeal: Helicopter Rescue
Ron Hals, a 73-year-old retiree from Fort Bragg, California, became violently ill on May 14 after settling into camp along the trail. He described feeling extremely weak and unable to stand. Fellow hikers called for emergency assistance, and a search and rescue team rappelled from a helicopter to evacuate him. Hals was flown to a medical center in Lancaster, where he was diagnosed with norovirus. He later recovered at a local motel.
Hals suspects he may have contracted the virus while resupplying in Wrightwood. Other hikers have suggested that a water cache in Swarthout Valley between Cajon Pass and Mount Baden-Powell could be a possible source of contamination.
Understanding Norovirus
Norovirus infects approximately 21 million Americans annually, leading to around 2 million medical visits. Symptoms include severe diarrhea, vomiting, nausea, and stomach pain, typically developing within 12 to 48 hours of exposure. The illness can cause life-threatening dehydration, especially in older adults, as the virus kills about 900 people each year, mostly those aged 65 and older.
Outbreaks are common in crowded settings such as cruise ships, schools, and nursing homes. This year, at least two norovirus outbreaks have occurred on US cruise ships. The virus is highly contagious and can spread through contaminated food, shared utensils, or contact with infected surfaces.
Prevention and Treatment
Health officials emphasize the importance of frequent handwashing with soap and water, especially after using the bathroom or before eating. Dehydration is a major concern; symptoms include dry mouth, dizziness, and decreased urination. Those infected should drink plenty of fluids and seek medical attention if symptoms worsen. Most people recover within a few days without specific treatment.
