Smallpox outbreak scenarios and reactive intervention protocols: A mathematical model-based analysis applied to the Republic of Korea - Youngsuk Ko; Yubin Seo; Jin Ju Park; Eun Jung Kim; Jong Youn Moon; Tark Kim; Joong Sik Eom; Hong Sang Oh; Arim Kim; Jin Yong Kim; Jacob Lee; Eunok Jung (PLoS ONE, 2026)