Douglas County Health Department officials said Monday the tuberculosis case reported at Central High School should be no cause for alarm.

“We are planning to test all students that attended classes with the ill student, meaning they were in the same class most of the time. At this time, we do not see a need to test all students at Central High School”, said Health Department Director Dr. Adi Pour, according to WOWT.com.

Officials say this should be an isolated case and Dr. Jose Romero, a pediatric infectious disease specialist said people need to remain calm about the case.

Tuberculosis, a bacterial disease, is spread generally through air. The disease can turn deadly if left untreated, according to the Centers for Disease Control and Prevention and, most often, affects the lungs or throat, but it can also affect other parts of the body. There were 10 cases of tuberculosis in Douglas County last year and more than 13,000 in the country, the CDC officials say.

Omaha Public School representatives declined to identify the student who had had been out of school for the past few weeks, local newspaper Omaha World Herald reported. According to Dr. Pour, about 15 relatives of the ill student were tested for the disease, and one adult tested positive.

Omaha High School principal Greg Emmel announced that letters are being sent to the parents of about 100 students to get permission for in-school TB testing.

Students and parents can attend an informational session about TB on Monday, April 14 at 5 p.m. in the Central High auditorium. Other questions or concerns can be directed to the Douglas County Health Department at 444-7214.