In the 13 years of the CDC’s current flu-tracking system, this is the first time the entire continental United States had widespread flu (shown in brown), a CDC spokesman said Friday.
In the 13 years of the CDC’s current flu-tracking system, this is the first time the entire continental United States had widespread flu (shown in brown), a CDC spokesman said Friday.
In the 13 years of the CDC’s current flu-tracking system, this is the first time the entire continental United States had widespread flu (shown in brown), a CDC spokesman said Friday.