2022-12-20-世界卫生组织-Weekly_epidemiological_update_on_COVID-19_-_21_December_2022_13页_921kb

COVID-19 Epidemiological Update Summary

1. Global Overview

• New cases slightly increased by 3% during the week ending December 18th, with 3.7 million reported.
• New deaths decreased by 6% to over 10,400 globally.
• Cumulative cases exceed 649 million, deaths over 6.6 million.
• Regional trends show decreases in case numbers across four WHO regions (Africa, Southeast Asia, Eastern Med, Europe), while increases in the Americas and Western Pacific Regions.

2. SARS-CoV-2 Variants

• Omicron still predominant, representing 99.7% of globally sequenced SARS-CoV-2 variants.
• BA.5 and its lineages remain dominant but are declining.
• New variants BQ.1 and XBB are under monitoring but not affecting severity.

3. Regional Updates

• Americas: Cases up by 18%, deaths slightly increasing. Countries like the US and Brazil reported high numbers.
• Africa: Cases dropped sharply by 29%. Deaths also decreased by 95%, but new fatalities varied, particularly in Democratic Republic of Congo.
• Europe: Reported over 950k new cases, a 16% drop from the previous week.
• Eastern Med: ~5.7k cases, a 26% decrease.
• Southeast Asia & Western Pacific: Southeast Asia saw a 36% drop, while the Western Pacific had an 8% increase.

4. Hospitalizations and ICU Admissions

• There were 26,546 new hospitalizations and 1,270 new ICU admissions globally in the previous week.
• Regional data varies; high increases noted in France, Belgium, and Latvia.

5. Operational Highlights

• Summary covers activities in Haiti, Mongolia, Mozambique, Colombia, etc., focusing on vaccine coverage, medical equipment, emergency response systems, and health system support.

6. Data Caveats

• Case numbers may significantly undercount due to changes in testing strategies and data reporting delays.
• Variant data based on GISAID submissions from countries differs in capacity and timeliness.