The Aspen School District reported a second case of pertussis, or whooping cough, among its students Thursday.
The first laboratory-confirmed case was reported in December. The second, which was announced in an email to Aspen School District parents, has been treated and investigated by the Public Health Department.
“We send this notice not to alarm but to encourage vigilance about observing for pertussis symptoms and seeking medical attention if needed,” the email reads.
Pertussis is a contagious illness that spreads when an infected person sneezes or coughs and another person breathes in the bacteria. Symptoms of pertussis usually develop seven to 10 days after exposure but can develop anywhere from four to 21 days after exposure.