1. 老龄,是COVID-19易感及疫苗保护力随时间衰减的独立危险因素;老年人的疫苗接种和强化接种需要特别重视。 2. Delta突变株的出现,已经完全改变了抗疫策略;使接种疫苗成为必要,强化接种非常重要。 参考资料: 1.Effectiveness of COVID-19 Vaccines in Preventing SARS-CoV-2 Infection Among Frontline Workers Before...
2022年9月30日,美国CDC在周报中发表了第二剂疫苗接种对预防Omicron突变株的有效性,显示:对于养老院人群,与只给予第一剂加强接种的人群相比,第二剂加强接种几乎无法预防Omicron突变株的传染(VE 25.8%),但仍非常有效地预防Omicron感染后死亡...
CDC的报告显示，新冠原病毒的传染力和普通感冒差不多，平均1个受感染者会将病毒传染给另2个人，但Delta...
Theeffectivenessof this year's influenza vaccine was lower in South America than last season, the Centers for Disease Control and Prevention reported Thursday, which might be a clue to how much protection theshotscould offer people in the U.S. this winter. Vaccine effectiveness was 34.5% again...
the Covid19 vaccine would prevent infections, stop transmissions, and end the pandemic. Anybody who disagreed was vilified by the press — and banned from social media: PFIZER Real-World Evidence Confirms High Effectiveness of Pfizer-BioNTech COVID-19 Vaccine and Profound Public Health Impact of...
完全接种疫苗,可以使感染COVID-19的风险降低8倍,使感染COVID-19而住院风险降低25倍,使感染COVID-19而死亡风险降低25倍。 注意,这是针对所有新冠病毒,对于Delta突变株,低了很多。 后面CDC还啰里啰唆说了很多疫苗保护力的内容,都是为了向民众沟通、以提高大家对疫苗的信心。我们就不再逐一展示,因为很多内容其实是...
Preplanned Studies Willingness of the General Public to Receive A COVID-19 Vaccine Booster — China, April–May 2021 Xiaoxiao Wang, Leyuan Liu, Minyue Pei, Xiaoguang Li, Nan Li Perspectives Bubble Strategy — A Practical Solution to Return to Regular Life in the I...
目前,接种了辉瑞疫苗的民众中,每周约有3.5万人感染有症状COVID-19;但疫苗仍然很有效。 完全接种疫苗,可以使感染COVID-19的风险降低8倍,使感染COVID-19而住院风险降低25倍,使感染COVID-19而死亡风险降低25倍。 注意,这是针对所有新冠病毒,对于Delta突变株,低了很多。
cbs news getting a shot of the covid-19 vaccine during pregnancy works to pass on protection against the virus to newborns during their most vulnerable early months of life, a new study published by the centers for disease control and prevention reported. maternal vaccination was 54% effective ...
A senior citizen receives COVID-19 vaccine at a vaccination site in Haizhu district of Guangzhou, south China's Guangdong Province, April 7, 2022. Photo:Xinhua A well-timed second booster dose is necessary for a safe, long-term exit from the pandemic, the Chinese Center for Disease Control...