A second child in Texas has died from measles, one of the world's most contagious illnesses which was declared eliminated from the United States in 2000, several decades after the introduction of a highly effective vaccine.

The first case of measles in Florida was confirmed in a Miami-Dade County high school. Signs and symptoms of measles include a high fever, cough and runny nose. A rash appears 3-5 days after symptoms first appear. A second child has died from measles as the number of cases continues to grow in the United States.

EL PASO, Texas (KFOX14/CBS4) — Two cases of measles have been confirmed in El Paso. According to the William Beaumont Army Medical Center, a patient has tested positive for the measles after being tested at the Mendoza clinic on Friday.

A second child in Texas has died from measles, one of the world's most contagious illnesses which was declared eliminated from the United States in 2000, several decades after the introduction of a highly effective vaccine.

On Tuesday at a press conference, Health and Human Services Secretary Robert F. Kennedy Jr. said his department's handling of measles cases, including the outbreak in Texas should be a "model for the rest of the world.

As measles cases rise across the United States, misinformation about the life-threatening infection can put people at risk. Nationwide, cases have surpassed 600, with infections confirmed in 21 states.

U.S. pediatricians and infectious disease experts say the fight against rising measles cases nationwide is being hampered by a lack of forceful advocacy for vaccination from government health officials and statements on unproven treatments that are confusing parents.

Health Secretary Robert F. Kennedy Jr.’s “tepid endorsement” of measles vaccination puts the U.S. at risk of losing its elimination status of the disease as early as January, the Food and Drug Administration’s former top vaccine regulator said Tuesday.