Weather‑Driven Lung Infection Threatens 1, 000 Lives Annually

Valley fever is a lung disease caused by spores from the fungus Coccidioides, which thrives in dry soil across parts of the southwestern United States and south‑central Washington. The illness can be fatal, with up to 1,000 deaths reported each year.

Seasonal Risk

• High-risk months: June‑July and October‑November – drier, dustier conditions.
• Low-risk months: February‑March and August‑September – wetter, less dusty weather.
• Dust storms can spark outbreaks. Research indicates an increase in such storms from the 1990s to the 2000s may be worsening the problem.

Predictive Monitoring

Scientists can now forecast Valley fever outbreaks about a month in advance by monitoring weather forecasts. This early warning gives people, especially those over 60, time to take precautions.

Diagnosis and Treatment

• Common symptoms: cough and fever – often misdiagnosed.
• Reliable test: detection of specific antibodies or antigens in the blood.
• Treatment: if the infection does not clear on its own, doctors prescribe antifungal medication.

Prevention

• The disease is not contagious; it spreads only when people inhale spores from the environment.
• Residents in high‑risk areas are advised to:
• Stay indoors during dust storms.
• Wear N95 masks when outside.

High-Profile Cases

• A 26‑year‑old from Las Vegas died after a year of Valley fever.
• A woman in Phoenix suffered long‑term illness from dust‑storm exposure in 2012.

These stories underscore the importance of awareness and early detection.