WHO新冠流行周报(2022年5月11日)：全球新冠感染与死亡人数延续下降趋势

自2022年3月底以来，全球新冠感染人数与死亡人数呈持续下降趋势。在过去一周（5月2日至5月8日），纳入WHO监测的六个区域中，累计报道新冠感染者超过350万，新报道新冠死亡案例12,000例。与上一周相比，本周的感染人数和死亡人数环比分别下降12%和25%。但是，确诊患者在美洲（14%）和非洲地区（12%）呈现了上升的势头。非洲本周报告的死亡案例上升84%。

截止2022年5月8日，全球累计报道新冠确诊感染患者5.14亿人次，全球累计死亡人数600万。

在本期周报中，我们更新了循环SARS-CoV-2 VOCs信息，包括总结了目前对奥密克戎变异株的一些已知循证依据。我们也更新了针对奥密克戎变异株的疫苗有效性数据。

Overview原文如下，或者您也可以下载2022年5月11日WHO新冠流行周报全文，自行阅读。

Globally, the number of new COVID-19 cases and deaths has continued to decline since the end of March 2022.

During the week of 2 through 8 May 2022, over 3.5 million cases and over 12 000 deaths were reported, decreases of 12% and 25% respectively, as compared to the previous week. However, an increase in the number of new weekly cases was reported from the Region of the Americas (+14%) and the African Region (+12%) and an increase in the number of weekly deaths was reported from the African Region (+84%).

As of 8 May 2022, over 514 million confirmed cases and over six million deaths have been reported globally.

In this edition, we provide an update on the geographic distribution of circulating SARS-CoV-2 variants of concern (VOCs), including the prevalence and summary of current evidence of the Omicron variant. We also provide updates on vaccine effectiveness for the Omicron variant.