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資料３－２ 鈴木先生提出資料 (104 ページ)
出典
| 公開元URL | https://www.mhlw.go.jp/stf/seisakunitsuite/bunya/0000121431_00395.html |
| 出典情報 | 新型コロナウイルス感染症対策アドバイザリーボード (第111回 12／21)《厚生労働省》 |
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北半球/温暖地域（北米）
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直近の過小評価に注意
In the countries of North America, influenza positivity and ILI activity continued to increase steeply in recent weeks. In Canada, ILI
activity continued to increase well above the pre-pandemic seasonal average for this time of year. Influenza percent positivity has
been above the seasonal threshold for five consecutive weeks and was also well above the pre-pandemic seasonal average for
this time of year. Cumulative influenza-associated hospitalizations were highest in children under five years of age and adults 65
years and older, and paediatric hospitalizations continued to increase and were at levels above the typical peak of epidemic
activity. In the U.S., ILI continued to increase well above levels observed for this time of the year during the past five seasons, with
increases observed in all age-groups and across the country. To date, cumulative influenza hospitalizations were greater
compared to the same date for past seasons since 2010-11. The percentage of deaths attributed to pneumonia, influenza or
COVID-19 remained above the epidemic threshold established from historical data, with the majority of recent mortality attributed
to COVID-19 but with an increased number due to influenza in recent weeks. In both countries, several respiratory viruses were
co-circulating. Influenza A viruses predominated and A(H3N2) viruses accounted for the majority of subtyped influenza A viruses.
Influenza A(H1N1)pdm09 accounted for approximately 5% of subtyped influenza A detections in Canada and 16% in the USA in
104
the most recent week. RSV activity remained elevated in both countries and above average levels for this
104
time of year in Canada but seemed to have peaked in both countries.
•
直近の過小評価に注意
In the countries of North America, influenza positivity and ILI activity continued to increase steeply in recent weeks. In Canada, ILI
activity continued to increase well above the pre-pandemic seasonal average for this time of year. Influenza percent positivity has
been above the seasonal threshold for five consecutive weeks and was also well above the pre-pandemic seasonal average for
this time of year. Cumulative influenza-associated hospitalizations were highest in children under five years of age and adults 65
years and older, and paediatric hospitalizations continued to increase and were at levels above the typical peak of epidemic
activity. In the U.S., ILI continued to increase well above levels observed for this time of the year during the past five seasons, with
increases observed in all age-groups and across the country. To date, cumulative influenza hospitalizations were greater
compared to the same date for past seasons since 2010-11. The percentage of deaths attributed to pneumonia, influenza or
COVID-19 remained above the epidemic threshold established from historical data, with the majority of recent mortality attributed
to COVID-19 but with an increased number due to influenza in recent weeks. In both countries, several respiratory viruses were
co-circulating. Influenza A viruses predominated and A(H3N2) viruses accounted for the majority of subtyped influenza A viruses.
Influenza A(H1N1)pdm09 accounted for approximately 5% of subtyped influenza A detections in Canada and 16% in the USA in
104
the most recent week. RSV activity remained elevated in both countries and above average levels for this
104
time of year in Canada but seemed to have peaked in both countries.