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Volume 29, Number 1—January 2023
Research

Seroepidemiology and Carriage of Diphtheria in Epidemic-Prone Area and Implications for Vaccination Policy, Vietnam

Noriko KitamuraComments to Author , Thanh T. Hoan, Hung M. Do, The A. Dao, Lien T. Le, Thao T.T. Le, Thuy T.T. Doan, Thuong N. Chau, Hoi T. Dinh, Masaaki Iwaki, Mitsutoshi Senoh, Androulla Efstraciou, Nen M. Ho, Duc M. Pham, Duc-Anh Dang, Michiko Toizumi, Paul Fine, Hung T. Do, and Lay-Myint Yoshida
Author affiliations: London School of Hygiene and Tropical Medicine, London, UK (N. Kitamura, P. Fine); Nagasaki University, Nagasaki, Japan (N. Kitamura, M. Toizumi, L.-M. Yoshida); Pasteur Institute in Nha Trang, Nha Trang, Vietnam (T.T. Hoan, H.M. Do, T.A. Dao, L.T. Le, T.T.T. Le, T.T.T. Doan, H.T. Do); Quang Ngai Provincial Health Services, Quang Ngai, Vietnam (T.N. Chau, H.T. Dinh, N.M. Ho, D.M. Pham); National Institute of Infectious Diseases, Tokyo, Japan (M. Iwaki, M. Senoh); National Institute of Hygiene and Epidemiology, Hanoi, Vietnam (D.-A. Dang); UK Health Security Agency, London (A. Efstraciou)

Main Article

Figure 1

Study areas and locations where the cases were identified before and during diphtheria study in Tay Tra and Son Ha districts in Quang Ngai Province, Vietnam. Red and purple indicate 10 communes selected for this study. Blue and purple indicate 1 laboratory-confirmed diphtheria case reported during January‒September 2019 in each of these communes. Purple (Son Ha commune) indicates 12 confirmed cases reported in this commune within 1 month from the survey date, October 2019. Green indicates 2 communes excluded from the selection process of this study because a mop-up vaccine campaign was conducted in 2018. Inset map shows location of the study area in Vietnam.

Figure 1. Study areas and locations where the cases were identified before and during diphtheria study in Tay Tra and Son Ha districts in Quang Ngai Province, Vietnam. Red and purple indicate 10 communes selected for this study. Blue and purple indicate 1 laboratory-confirmed diphtheria case reported during January‒September 2019 in each of these communes. Purple (Son Ha commune) indicates 12 confirmed cases reported in this commune within 1 month from the survey date, October 2019. Green indicates 2 communes excluded from the selection process of this study because a mop-up vaccine campaign was conducted in 2018. Inset map shows location of the study area in Vietnam.

Main Article

Page created: November 01, 2022
Page updated: December 21, 2022
Page reviewed: December 21, 2022
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