Fig. 1

Map of Korea showing the sampling region of pig fecal samples. The prevalence of Cryptosporidium, Eimeria, and Cystoisospora were determined by PCR. GW, Gangwon-do; GG, Gyeonggi-do; CB, Chungcheongbuk-do; CN, Chungcheongnam-do; JB, Jeollabuk-do; JN, Jeollanam-do; GB, Gyeongsangbuk-do; GN, Gyeongsangnam-do. No positive cases were identified in Gangwon-do and Chungcheongbuk-do. The map was originally created by Ksiom and adapted by Kwj2772 (Public domain, via Wikimedia Commons), and was subsequently modified using Microsoft Paint (Microsoft Corporation, Redmond, WA, USA).