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Please note the Imperial County Public Health Department will be closed to all walk-in services for the public. Department staff will be available to provide assistance by phone to members of the community who have questions related to any of the Department’s essential services.

Phone assistance will be available Monday through Friday from 8:00 am to 12:00 pm and 1:00 pm to 5:00 pm. The office will be closed for lunch from 12:00 pm to 1:00 pm. This shall remain in effect until further notice.

Latent Tuberculosis Infection - LTBI

A person with Latent TB Infection (LTBI):

  • Does not feel sick
  • Has no symptoms
  • Cannot spread TB bacteria to others
  • Usually has a positive TB skin test or positive TB blood test
  • Has a normal chest x-ray and a negative sputum smear
  • Should consider treatment for latent TB infection to prevent TB disease