Chihuahuas are beloved by many for their small size and feisty personalities. As one of the few canine breeds originating ...

Vaccination teams are part of an effort by health authorities across Mexico to contain the country’s biggest measles outbreak ...

Mennonites who spoke to The Associated Press — most on condition of anonymity, fearing backlash — repeatedly cited vaccine ...

In a rickety white Nissan, nurse Sandra Aguirre and her vaccination team drive past apple orchards and cornfields stretching to the desert horizon. Aguirre goes door to door with a cooler of measles ...

Penny, a Chihuahua mix and service pooch, is now in intensive care after one of the larger dogs set upon her out of nowhere ...