http://weekly.chinacdc.cn/ China CDC Weekly cdcwjournal@163.com cdcwjournal@163.com en cdcwjournal@163.com 2096-7071 http://weekly.chinacdc.cn/article/doi/10.46234/ccdcw2020.094?pageType=en Xiaochun Wang, Shuo Chen, Feng Tan, George F. Gao <sec< <b< <b<What is already known about this topic?</b< </b< <p<Since the first COVID-19 confirmed case was reported, the current epidemic in Africa has rapidly increased.</p<</sec<<sec< <b< <b<What is added by this report?</b< </b< <p<As of April 4, 2020, a total of 7,405 confirmed cases and 305 deaths had been reported from 51 countries across Africa. The cumulative number of reported COVID-19 cases varied among the five regions of Africa, of which northern Africa reported the largest number of confirmed cases. The five countries with the highest number of cases are South Africa, Algeria, Egypt, Morocco, and Tunisia.</p<</sec<<sec< <b< <b<What are the implications for public health practice?</b< </b< <p<Early detection, early isolation, early reporting, and early treatment of the COVID-19 are important and critical measures for the successful control of further transmission of COVID-19. Now more stringent prevention and control measures have been implemented in Africa, but due to often insufficient basic medical facilities and medical services, Africa is still facing challenges to the pandemic and needs to strengthen national health systems and develop immediate and future health plans.</p<</sec< China CDC Weekly. 2020 2(21): 365-369. Xiaochun Wang, Shuo Chen, Feng Tan, George F. Gao <sec< <b< <b<What is already known about this topic?</b< </b< <p<Since the first COVID-19 confirmed case was reported, the current epidemic in Africa has rapidly increased.</p<</sec<<sec< <b< <b<What is added by this report?</b< </b< <p<As of April 4, 2020, a total of 7,405 confirmed cases and 305 deaths had been reported from 51 countries across Africa. The cumulative number of reported COVID-19 cases varied among the five regions of Africa, of which northern Africa reported the largest number of confirmed cases. The five countries with the highest number of cases are South Africa, Algeria, Egypt, Morocco, and Tunisia.</p<</sec<<sec< <b< <b<What are the implications for public health practice?</b< </b< <p<Early detection, early isolation, early reporting, and early treatment of the COVID-19 are important and critical measures for the successful control of further transmission of COVID-19. Now more stringent prevention and control measures have been implemented in Africa, but due to often insufficient basic medical facilities and medical services, Africa is still facing challenges to the pandemic and needs to strengthen national health systems and develop immediate and future health plans.</p<</sec< China CDC Weekly. 2020 2(21): 365-369. Recent Trends and Challenges with COVID-19 — Africa, April 4, 2020 Xiaochun Wang, Shuo Chen, Feng Tan, George F. Gao 2020-05-01 Personal use only, all commercial or other reuse prohibited China CDC Weekly. 2020 2(21): 365-369. article doi:10.46234/ccdcw2020.094 10.46234/ccdcw2020.094 China CDC Weekly 2 21 2020-05-01 http://weekly.chinacdc.cn/article/doi/10.46234/ccdcw2020.094?pageType=en 365 http://weekly.chinacdc.cn/article/doi/10.46234/ccdcw2020.095?pageType=en Liumei Shu, Jie Zhang, Xiang Huo, Cong Chen, Shisong Fang, Kexin Zong, Yuanyuan Guo, Yingze Zhao, Jun Zhang, Changjun Bao, Junjie Xia, Fengcai Zhu, Dayan Wang, Guizhen Wu, George F. Gao, William J. Liu <sec<<p< <b<What is already known about this topic?</b< </p<</sec<<sec< <p<Vaccinations are the most effective way to prevent influenza virus infections and severe outcomes. Influenza vaccine effectiveness can vary by seasons.</p<</sec<<sec<<p< <b<What is added by this report?</b< </p<</sec<<sec<<p<This report monitors the antibody level among the population over time after administration of the quadrivalent or trivalent split influenza vaccine.</p<</sec<<sec<<p< <b<What are the implications for public health practice?</b< </p<</sec<<sec< <p<Real-time monitoring of serum antibody changes after vaccination provides important data for the development of reasonable and effective strategies for influenza prevention and control.</p<</sec< China CDC Weekly. 2020 2(21): 370-375. Liumei Shu, Jie Zhang, Xiang Huo, Cong Chen, Shisong Fang, Kexin Zong, Yuanyuan Guo, Yingze Zhao, Jun Zhang, Changjun Bao, Junjie Xia, Fengcai Zhu, Dayan Wang, Guizhen Wu, George F. Gao, William J. Liu <sec<<p< <b<What is already known about this topic?</b< </p<</sec<<sec< <p<Vaccinations are the most effective way to prevent influenza virus infections and severe outcomes. Influenza vaccine effectiveness can vary by seasons.</p<</sec<<sec<<p< <b<What is added by this report?</b< </p<</sec<<sec<<p<This report monitors the antibody level among the population over time after administration of the quadrivalent or trivalent split influenza vaccine.</p<</sec<<sec<<p< <b<What are the implications for public health practice?</b< </p<</sec<<sec< <p<Real-time monitoring of serum antibody changes after vaccination provides important data for the development of reasonable and effective strategies for influenza prevention and control.</p<</sec< China CDC Weekly. 2020 2(21): 370-375. Surveillance on the Immune Effectiveness of Quadrivalent and Trivalent Split Influenza Vaccines — Shenzhen City and Changzhou City, China, 2018–2019 Liumei Shu, Jie Zhang, Xiang Huo, Cong Chen, Shisong Fang, Kexin Zong, Yuanyuan Guo, Yingze Zhao, Jun Zhang, Changjun Bao, Junjie Xia, Fengcai Zhu, Dayan Wang, Guizhen Wu, George F. Gao, William J. Liu 2020-05-01 Personal use only, all commercial or other reuse prohibited China CDC Weekly. 2020 2(21): 370-375. article doi:10.46234/ccdcw2020.095 10.46234/ccdcw2020.095 China CDC Weekly 2 21 2020-05-01 http://weekly.chinacdc.cn/article/doi/10.46234/ccdcw2020.095?pageType=en 370 http://weekly.chinacdc.cn/article/doi/10.46234/ccdcw2020.096?pageType=en Fan Lyu China CDC Weekly. 2020 2(21): 376-377. Fan Lyu China CDC Weekly. 2020 2(21): 376-377. COVID-19 Control in Italy: Personal Experience from March 25−April 8, 2020 Fan Lyu 2020-05-01 Personal use only, all commercial or other reuse prohibited China CDC Weekly. 2020 2(21): 376-377. article doi:10.46234/ccdcw2020.096 10.46234/ccdcw2020.096 China CDC Weekly 2 21 2020-05-01 http://weekly.chinacdc.cn/article/doi/10.46234/ccdcw2020.096?pageType=en 376 http://weekly.chinacdc.cn/article/doi/10.46234/ccdcw2020.097?pageType=en Xidong Deng, Marcus Gaffney, Scott D. Grosse China CDC Weekly. 2020 2(21): 378-382. Xidong Deng, Marcus Gaffney, Scott D. Grosse China CDC Weekly. 2020 2(21): 378-382. Early Hearing Detection and Intervention in the United States: Achievements and Challenges in the 21<sup<st</sup< Century Xidong Deng, Marcus Gaffney, Scott D. Grosse 2020-05-01 Personal use only, all commercial or other reuse prohibited China CDC Weekly. 2020 2(21): 378-382. article doi:10.46234/ccdcw2020.097 10.46234/ccdcw2020.097 China CDC Weekly 2 21 2020-05-01 http://weekly.chinacdc.cn/article/doi/10.46234/ccdcw2020.097?pageType=en 378 http://weekly.chinacdc.cn/article/doi/10.46234/ccdcw2020.098?pageType=en COVID-19 Vaccines Technical Working Group China CDC Weekly. 2020 2(21): 383-384. COVID-19 Vaccines Technical Working Group China CDC Weekly. 2020 2(21): 383-384. Establishment of the NIAC Technical Working Group on COVID-19 Vaccines COVID-19 Vaccines Technical Working Group 2020-05-01 Personal use only, all commercial or other reuse prohibited China CDC Weekly. 2020 2(21): 383-384. article doi:10.46234/ccdcw2020.098 10.46234/ccdcw2020.098 China CDC Weekly 2 21 2020-05-01 http://weekly.chinacdc.cn/article/doi/10.46234/ccdcw2020.098?pageType=en 383

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