Of 1,141 grownup sufferers in Arizona hospitalized for community-acquired pneumonia, 76% had been examined for Coccidioides an infection, and 10% had constructive outcomes, Mayo Clinic Phoenix researchers report in Open Discussion board Infectious Illnesses.
The researchers reviewed the medical data of CAP sufferers admitted to Mayo Clinic Hospital from November 2024 by way of October 2025 to find out the speed and patterns of coccidioidomycosis testing and positivity over time.
The fungal an infection coccidioidomycosis (valley fever) is endemic to the southwestern United States, Washington state, and Central and South America. It accounts for 15% to 30% of CAP in endemic areas akin to Arizona.
Widespread signs embody fever, cough, shortness of breath, rash, chest ache, weight reduction, and fatigue. However these signs are sometimes absent or just like these of different CAP-causing pathogens, typically slowing prognosis and therapy. Even in any other case wholesome sufferers can develop extreme illness.
“Though the Facilities for Illness Management and Prevention (CDC) report 10,000 to twenty,000 coccidioidomycosis instances yearly, the true incidence is probably going a lot increased due to (1) state-based variations in reporting practices and (2) possible missed diagnoses,” the authors wrote.
Name for common testing
Coccidioides was probably the most generally recognized pathogen in CAP sufferers. Optimistic testing charges had been highest in November and December 2024 and October 2025 (vary, 13% to 21%) and in March 2025 (15%), per the illness’s seasonal variation.
A shorter LOS could possibly be an institutional incentive to check all sufferers with CAP for coccidioidal an infection.
Most sufferers had been examined if that they had regarding chest radiographs, fatigue, fever, and/or shortness of breath. These with a historical past of coccidioidomycosis and people with rash, evening sweats, headache, or excessive white blood-cell rely had been probably to check constructive.
The authors referred to as for testing all CAP sufferers for Coccidioides. When Coccidioides was recognized early, hospital size of keep (LOS) was shorter than that with noncoccidioidal CAP.
“A shorter LOS could possibly be an institutional incentive to check all sufferers with CAP for coccidioidal an infection,” they wrote. “Missed diagnoses can probably lengthen signs and hospitalization, in addition to unnecessarily exposing sufferers to antibacterial remedy or invasive diagnostic testing that will contribute to affected person nervousness.”
