1 Division of Bacterial Diseases, Center for Laboratory Control of Infectious Diseases, Korea Centers for Diseases Control and Prevention, Chungcheongbuk-do, Republic of Korea.
2 Division of Microbiology, Chungcheongnam-do government research institute of public health and environment, Chungcheongnam-do, Republic of Korea.
3 Division of Infectious Diseases Investigation, Jeollabuk-do government research institute of public health and environment, Jeollabuk-do, Republic of Korea.
4 Boryenong public health center, Chungcheongnam-do, Republic of Korea.