Twenty-seven more people have tested positive for tuberculosis at an eastern Kansas high school.
State and county health officials made the announcement Wednesday after tests were conducted on more than 300 Olathe Northwest High School students and staff members who came into contact with an infected student.
Officials began calling people who test positive on Monday. People with no sign of infection will receive letters.
Tuberculosis can be spread by coughing and sneezing. Symptoms include a bad cough for three weeks or longer, chest pain, weakness or fatigue, and coughing up blood.
People with the disease are most likely to spread it to others with whom they have prolonged contact.
Information from: The Kansas City Star