Health authorities warned of further spread. Most U.S. measles cases this year involved people 19 and under and those without a confirmed vaccination.

State health workers fear more cases may crop up in coming days, especially since the confirmed cases seem to be unrelated.

The video above first aired on February 17. The number of cases has risen since this video aired. LEA COUNTY, New Mexico (KMID/KPEJ)- Health officials at New Mexico Junior College

Measles Vaccination Clinics

In New Mexico, officials said nine people had been sickened in Lea County, along the state's eastern border with Texas. Measles is highly contagious and can be deadly. The outbreaks come amid a rise in US anti-vaccine sentiment,

The (NMDOH) reports two adult Lea County residents tested positive for measles Thursday– as confirmed by the NMDOH Scientific Laboratory Division - totaling to three cases this week. New Mexico meets the Centers for Disease Control and Prevention’s outbreak criteria with three unrelated cases in Lea County.

Of the eight total cases of measles in New Mexico — all in Lea County — four were among adults and the remaining four among children under 18.

Texas reported 90 cases this week, while New Mexico reported nine. A majority of the cases have been in a Texas county where vaccination rates have lagged behind the rest of the state.

The (NMDOH) reports two adult Lea County residents tested positive for measles Thursday– as confirmed by the NMDOH Scientific Laboratory Division - totaling to three cases this week. New Mexico meets the Centers for Disease Control and Prevention’s outbreak criteria with three unrelated cases in Lea County.

Two cases of measles were detected in metro Atlanta last week; this week, one case was confirmed in New Mexico, and an outbreak in West Texas is growing, with 24 cases, according to the state health department.

The New Mexico Department of Health on Tuesday confirmed an additional five cases of measles in Lea County, bringing the total to eight cases in the state.