Valley fever is a serious disease in both animals and people. And as cases increase in humans, the same is happening with dogs.
The fungal organism responsible is endemic to — that is, entrenched in — California, the southwestern United States and parts of Texas. There, fungal spores can be inhaled from the environment — even during a short visit. Those with healthy immune systems can contain the organism in their lungs with only minimal effects. But in those with weakened immune systems, the microbes often spread to other organs. In dogs, that’s primarily the bones and joints, making lameness a common clinical sign.
The more severe the case of Valley fever, the longer the treatment. So, if you notice suspicious symptoms in your dog, schedule a checkup as soon as possible.