2022-10-11-世界卫生组织-Weekly_epidemiological_update_on_COVID-19_-_12_October_2022_10页_759kb

报告摘要

New Cases: Globally, the number of new weekly cases decreased by 10% compared to the previous week, with 2.8 million new cases reported.
New Deaths: The number of new weekly deaths remained stable (-1%), with approximately 9000 fatalities reported.
Cumulative Cases and Deaths: As of 9 October 2022, there have been over 618 million confirmed cases and over 6.5 million deaths globally.
Regional Trends:
- New Cases: All six WHO regions reported a decrease or stable trend. The most significant decline was in the African Region (-41%), followed by the Western Pacific Region (-21%), South-East Asia Region (-25%), Eastern Mediterranean Region (-14%), Region of the Americas (-10%) and European Region (-3%).
- New Deaths: Five regions reported a decrease or stable trend, while the Region of the Americas saw an 11% increase in deaths.

Global Sequence Data: From 10 September to 10 October 2022, 101,538 SARS-CoV-2 sequences were shared through GISAID.
Dominant Variants: The Omicron variant accounted for 99.9% of sequences, with BA.5 and its descendants being the most prevalent (76.2%), followed by BA.4 descendants (7.0%) and BA.2 descendants (3.9%).
Unassigned Sequences: 12.8% of sequences were unassigned but presumed to be Omicron.
Monitoring: Several Omicron descendant lineages are still under monitoring for potential changes in transmissibility or disease severity.

New Cases: 3700 new cases (-41%)
New Deaths: 18 new deaths (-53%)
Notable Increases: Nine countries reported a 20% or greater increase in new cases, with Mauritania (+44%), Mali (+40%), and Eswatini (+30%) showing the highest increases.
Notable Decreases: South Africa and Réunion reported significant declines in cases, while Algeria and Zimbabwe had the highest numbers of new deaths.

New Cases: 397,000 new cases (-10%)
New Deaths: 4100 new deaths (+11%)
Notable Increases: Honduras (+396%), Bermuda (+106%), and Curaçao (+100%) saw the largest increases in new cases.
Notable Decreases: Canada and Brazil had decreases in deaths, but Brazil reported a sharp increase (+168%).

New Cases: 17,900 new cases (-14%)
New Deaths: 100 new deaths (stable)
Notable Increases: Morocco (+40%) and Kuwait (+29%) reported increases in new cases.
Notable Deaths: Iran had the highest number of new deaths (+7%), while Saudi Arabia and Lebanon had stable death counts.

New Cases: 1.6 million new cases (-3%)
New Deaths: 2800 new deaths (-12%)
Notable Increases: San Marino (+41%), Austria (+25%), and Greece (+21%) reported increases in new cases.
Notable Deaths: Italy (+32%), Spain (+70%), and Russia (+3%) had the highest numbers of new deaths.

New Cases: 37,000 new cases (-25%)
New Deaths: 200 new deaths (-23%)
Notable Increases: Timor-Leste (+250%) was the only country with an increase in new cases.
Notable Deaths: India (-23%) and Indonesia (-38%) reported decreases in deaths, while Thailand (+9%) saw an increase.

New Cases: 770,000 new cases (-21%)
New Deaths: 1500 new deaths (+1%)
Notable Increases: Mongolia (+99%), Papua New Guinea (+87%), and Singapore (+69%) reported significant increases in new cases.
Notable Deaths: Japan (+1%), China (+12%), and Philippines (+57%) had the highest numbers of new deaths.

Testing Strategies: Several countries have changed testing strategies, leading to a decrease in the number of tests performed and thus lower case detection.
Data Adjustments: Data from previous weeks are continuously updated, which may affect the reported numbers.
Underestimation and Delays: Variability in case detection, inclusion criteria, testing strategies, and reporting practices can lead to underestimation of true incidence and delays in data reflection at the global level.
Surveillance Limitations: Differences in sequencing capacity and sampling strategies affect the accuracy of variant prevalence data.

Data Sources: Information is based on WHO's case definitions and surveillance guidance, with continuous verification and potential changes.
Variant Classification: WHO regularly assesses variants based on their impact on transmission, disease characteristics, and public health measures.
Variant Tracking: The Omicron lineage remains dominant, with its descendants being monitored for changes in prevalence and characteristics.
Data Requests: A record of historical data adjustments can be obtained by contacting epi-data-support@who.int.

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