“While that is accurate (that they had TB), it’s important to note that those refugees were not infectious and could not spread the tuberculosis infection to other people,” DHW officials wrote on the department’s blog. “They all had abnormal chest X-rays, which is typically how they are screened for TB in other countries, but they tested negative for contagious disease in three separate sputum cultures after they arrived in Idaho. Even so, they all received immediate treatment and were monitored by public health officials to make sure any TB would be killed that their lungs might harbor.”