The invisible threat of valley fever

Though they are a fascinating to watch, the recent dust storms pose a health risk that cannot be seen.

Besides dust particles and loose debris, these storms are also picking up a fungus that causes valley fever.  For some people, the symptoms of valley fever, or Coccidioidomycosis, are similar to flu. But in other cases, there is already a resistance within immune system and the individuals may not be affected.

“Valley fever is somewhat of a mystery,” said Heather Murphy, the county’s communications director for health services and animal control. “There are a lot of studies being done, especially at the University of Arizona. It affects different people in different ways but it is an equal opportunity abuser.”

Murphy says it passes through some people without them realizing it, but in extreme cases it can be fatal. Reports say that there were 6,000 people in Arizona diagnosed with the disease over this last year. Murphy said health experts expect to see more people being diagnosed with it because of the magnitude of the storms.

“Unfortunately, most of it begins here in the southern part of Pinal County as it travels north,” she said. “However, it is not just because of the dust storms, it is a fungus in the soil. You can inhale it from digging in an area that contains it.”

Valley fever cannot be passed from human to human. Most at risk are those with existing respiratory problems like asthma or chronic bronchitis.

“People can only be infected when the fungus becomes airborne,” Murphy said. “It is also not restricted to just people. Pets can get sick as well. It is in the best interest of the animal to bring them inside during these storms and not put them at unnecessary risk.”

Murphy said if an animal displays lethargy or appear to be lame, to definitely take the animal to the veterinarian.   

Currently, there is no cure for valley fever but there have been gains in treatments. A drug called Nikkomycin Z has proven successful on mice and will be clinically tested on humans next year. Individuals that are unusual flu-like symptoms are advised to receive immediate medical attention. 

For more information, call the Pinal County Public Health Services District at 520-866-7358 or toll-free at 866-960-0633.