Dogs across the nation are catching a mysterious respiratory illness and has officially made its way to California.

While the root cause of this illness is unknown, symptoms include coughing, nasal discharge, sneezing, and lethargy. 

For more, KCBS Radio's Patti Reising and Bret Burkhart spoke with Dr. Jennier Scarlett, Veterinarian and CEO of the San Francisco SPCA, an independent non-profit animal shelter.