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Zhu P, Wu D, Wang Y, Liu X, Rodewald LE, Li Y, Zheng H, Cao L, Song Y, Song L, Zhao X, Yao J, Wang F, Li M, Zhang Q, Yan T, Yin Z. Effectiveness of DTaP Against Pertussis in ≤2-Year-Old Children - Linyi Prefecture, Shandong Province, China, 2017-2019. China CDC Wkly 2023; 5:374-378. [PMID: 37197447 PMCID: PMC10184384 DOI: 10.46234/ccdcw2023.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 04/18/2023] [Indexed: 05/19/2023] Open
Abstract
What is already known about this topic? Vaccine effectiveness (VE) is positively correlated with the number of administered co-purified diphtheria, tetanus, and acellular pertussis vaccine (DTaP) doses. A matched case-control study conducted in Zhongshan City revealed that the co-purified DTaP VE against pertussis-related illnesses in children aged 4-11 months was 42% for one dose, 88% for two doses, and 95% for three doses, respectively. What is added by this report? The results of this study contribute to the current body of research. We found that the VE of co-purified DTaP against pertussis-related illness and hospitalization increased substantially, ranging from 24%-26% after one dose to 86%-87% after four doses. What are the implications for public health practice? The results of this study underscore the significance of prompt and comprehensive immunization using co-purified DTaP to decrease the incidence of pertussis. Additionally, these findings offer evidence supporting the modification of China's pertussis vaccination approach.
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Affiliation(s)
- Pinpin Zhu
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Dan Wu
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yan Wang
- Linyi Center for Disease Control and Prevention, Linyi City, Shandong Province, China
| | - Xiaoxue Liu
- Jinan Center for Disease Control and Prevention, Jinan City, Shandong Province, China
| | - Lance E. Rodewald
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yixing Li
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Hui Zheng
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Lei Cao
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yifan Song
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Li Song
- Linyi Center for Disease Control and Prevention, Linyi City, Shandong Province, China
| | - Xiaodong Zhao
- Jinan Center for Disease Control and Prevention, Jinan City, Shandong Province, China
| | - Jianyi Yao
- Health Communication Center, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Fuzhen Wang
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Mingshuang Li
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Qian Zhang
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Tingting Yan
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Zundong Yin
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing, China
- Zundong Yin,
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