Agustin Zeferino, 24, a farm worker living in Santa Maria, California, was last seen in Santa Barbara County on August 11, 2014, and has not been heard from since. At the time he disappeared he was undergoing treatment for drug-resistant tuberculosis that required 18 to 24 months of medication. Officials say he stopped that treatment, and while he was reportedly not contagious when last seen, failing to continue therapy would make him infectious again.

Because of the public-health risk, the Santa Barbara County Public Health Department issued a health alert on August 22, 2014, and authorities obtained a warrant to compel him back into treatment. The public was warned not to approach him and to call 911 if he was sighted. Zeferino is described as a Hispanic male, 5 feet tall, about 120 pounds, and possibly a migrant farm worker. His whereabouts remain unknown.

If anyone saw Agustin Zeferino in or around Santa Barbara County in August 2014 or has information about his disappearance, please contact the Santa Barbara County Sheriff’s Department.