Mobile clinics are part of a new push by Denver-area public health officials to find the neighborhoods where vaccinations lag behind state or county averages.

A Pfizer win could cost taxpayers billions of dollars and erase an important control on pharma marketing after decades of regulatory erosion and soaring drug prices.

Delta is more dangerous in many ways. It has an incubation period of four days, rather than six, making people contagious sooner.

However, California's new law has been hailed by advocates as a national model for mental health reform.