From Europe to New York City, 75 to 80 percent of positive cases have no known source.
KDKA's Dr. Maria Simbra has more.
From Europe to New York City, 75 to 80 percent of positive cases have no known source.
KDKA's Dr. Maria Simbra has more.
Holidays look very different this year and while many are planning scaled back gatherings or virtual dinners, there are those who..