Comparative analysis of transmission and vaccine effectiveness in Omicron and Delta variant outbreaks in China - 24/12/22
Doi : 10.1016/j.jinf.2022.08.018
Kangguo Li a, 1, Feng Ruan b, 1, Zeyu Zhao a, c, 1, Zhinan Guo d, 1, Zimei Yang a, Shanshan Yu a, Buasiyamu Abudunaibi a, Xuebao Zhang b, Xiling Yin b, Wenhua Mei ⁎, b 
, Tianmu Chen a, ⁎
, Tianmu Chen a, ⁎ a State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Fujian, China
b Zhuhai Center for Disease Control and Prevention, Guangdong, China
c CIRAD, Intertryp, Montpellier, France, IES, Université de Montpellier-CNRS, Montpellier, France
d Xiamen Center for Disease Control and Prevention, Fujian, China
⁎Corresponding authors.
Highlights |
• | Omicron BA.2 was transmitted faster than BA.1 and delta. |
• | No significant difference in the effectiveness of vaccines against Omicron BA.1 and BA.2 infections. |
• | Omicron BA.2 can easily break through the existing immune barrier constructed mainly by inactivated vaccines for breakthrough infections in China. |
• | Improving booster vaccination rates, accelerating the availability of non-inactivated vaccines, and treating infections remains a priority. |
Keywords : COVID-19, VOC, Epidemiological parameter, Vaccine effectiveness
Plan
© 2022
The British Infection Association. Publié par Elsevier Masson SAS. Tous droits réservés.
Vol 86 - N° 1
P. 66-117 - janvier 2023 Retour au numéro
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