Generate an explanation for the given claim using the provided supporting material from the paragraph. Please consider the following points while generating an output. 1) The claim will always have supporting proof in the paragraph, and the paragraph will have a clear point of view supporting the claim. 2) There can be instances where direct correlation to the claim is not available. Make use of the sentences in the paragraph to provide a corresponding output supporting the claim. 3) The explanation should be at least one and at most twelve sentences long.

Paragraph: El Paso's Department of Public Health is investigating the possible TB exposure at Hanks High School. Officials believe a student came in close contact with someone who had an active case of TB. Robert Resendes is the director of the city's Public Health Department. He says free testing will be available to those who may have been exposed. Health officials say the bacterial illness isn't easily transmitted and requires extensive exposure to spread. It can be contracted by breathing in infected droplets from the cough or sneeze of a person with active TB. Symptoms include a persistent cough, coughing up blood, fever, night sweats and chronic weakness. Claim: Texas officials investigating possible tuberculosis exposure.
Health officials say about 150 high school students in western Texas may have been exposed to tuberculosis.