Angela Solis, a pharmacist at Martin's Wellness and Compounding Pharmacies, said measles is the most contagious respiratory illness. She said interest in the MMR vaccine has increased at the pharmacies since the Texas measles outbreak began.

State and local health officials are urging individuals to receive MMR vaccine as Texas reaches 124 cases this week. Here is what we know.

The measles outbreak in Texas has now turned deadly. Texas and federal health officials have just reported the first deaths attributed to the still-growing outbreak, which has sickened over a hundred people.