Incubation Period of Pertussis During a School-based Outbreak, South Korea, 2024.

Achangwa, Chiara; Cho, Seonghui; Ko, Yeongseon; Kim, Bryan Inho; Ali, Sheikh Taslim; Pei, Sen; Ryu, Sukhyun · J Infect Dis · 2026

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Abstract

Using data from a 2024 pertussis outbreak in South Korea, we estimated a median incubation period of 11 days (95% credible interval, 9-14) and a 95th percentile of 26 days (95% credible interval, 18-31), supporting 21-day monitoring of exposed contacts and vigilance beyond day 21 in ongoing outbreaks.