2024-12-11-世界卫生组织-Cumulative_number_of_confirmed_human_cases_for_avian_influenza_A_H5N1_reported_to_WHO,_2003-2024,_12_December_2024_4页_119kb

Avian Influenza A(H5N1) Human Cases Summary (WHO, 2003-2024)

Overview

• WHO reports cumulative laboratory-confirmed cases of avian influenza A(H5N1) from 2003 to 2024.
• Total cases by Dec 12, 2024: 954 cases, with 464 deaths.
• Cases include those from asymptomatic individuals, with inconclusive distinctions in some cases.
• Data sourced from WHO/GIP, ensuring only confirmed reports.

Decades

• 2003-2009: 468 cases, 282 deaths.
• 2010-2014: 233 cases, 125 deaths.
• 2015-2019: 160 cases, 48 deaths.
• 2020-2024: Includes additional cases, with a total of 954 by 2024.

High-Incidence Countries

• Most cases by country:

  • Egypt: 359 cases, 120 deaths.
  • Indonesia: 200 cases, 168 deaths.
  • Viet Nam: 129 cases, 65 deaths.
  • China: 56 cases, 32 deaths.
  • Others: e.g., Azerbaijan (85 cases, 43 deaths), Cambodia, United States (59 cases, no deaths).

• Increases in cases appeared in later decades, but notable lulls or variations occurred.

Key Notes

• Lab confirmation is the only criterion for inclusion.
• Death counts may not match all cases due to reporting timelines or inconclusive cases.
• All data reflects onset of illness and contamination possibilities.