Fallowed Fields Tied to Valley Fever
California surveillance data reveal associations between land use and coccidioidomycosis incidence
Clinical Scorecard: Fallowed Fields Tied to Valley Fever
At a Glance
Category Detail
Condition Coccidioidomycosis (Valley Fever) Key Mechanisms Inhalation of airborne spores of Coccidioides fungi Target Population Residents of California, particularly in areas with high incidence Care Setting Population-based study analyzing incidence and environmental factors
Key Highlights
Study analyzed 65,657 confirmed cases of coccidioidomycosis in California from 2008 to 2021 Incidence peaked in Kern County and during the fall season Higher incidence linked to larger areas of shrubland, barren ground, and grassland Newly fallowed land associated with increased incidence of coccidioidomycosis Study did not establish causation between land use and infections Guideline-Based Recommendations
Diagnosis
Laboratory testing is important to distinguish coccidioidomycosis from other respiratory infections Management
Consider testing for coccidioidomycosis in patients with compatible respiratory symptoms in high-incidence areas Monitoring & Follow-up
Surveillance data may underrepresent agricultural workers with limited access to health care Risks
Environmental factors such as soil conditions and dust production may influence incidence Patient & Prescribing Data
Patients with respiratory symptoms in California, particularly in high-incidence counties
Study did not assess the performance of any diagnostic method
Clinical Best Practices
Monitor environmental factors that may influence coccidioidomycosis incidence Utilize geographic and seasonal data to inform testing strategies Related Resources & Content
