Heavy rain from Tropical Storm Hilary, storms from Jova and flooding from monsoon moisture have doctors on high alert in the Desert Southwest for a disease outbreak that can turn deadly if not caught. Valley fever, or Coccidioidosis, is a fungal infection. Humans and pets can get it just by inhaling dusty air. Fungus spores grow in dirt and soil and become airborne when wind, construction, digging and earthquakes disturb the soil. Wind carries the spores to noses and mouths. The spores thrive in the rain and multiply, according to notes in the Morbidity and Mortality Weekly Report. … This summer’s heat wave bakes the ground and dries out the soil. Thunderstorm winds blow the spores around.