Researchers at UC San Francisco and Johns Hopkins may have found a new way to diagnose Lyme disease, based on a distinctive gene "signature" they discovered in white blood cells of patients infected with the tick-borne bacteria.
Even though it is hard to diagnose, Lyme disease is still the most common vector-borne illness in the United States, with 30,000 cases reported each year to the Centers for Disease Control and Prevention. With more accurate tests, experts say, the number of people infected could turn out to be 10 times higher.