2023-01-04-世界卫生组织-Cumulative_number_of_confirmed_human_cases_for_avian_influenza_A_H5N1_reported_to_WHO,_2003-2023,_5_January_2023_4页_76kb

Summary of Cumulative Confirmed Human Cases for Avian Influenza A(H5N1) Reported to WHO (2003-2023)

Core Content

This document provides a summary of the cumulative number of confirmed human cases and deaths due to avian influenza A(H5N1) reported to the World Health Organization (WHO) from 2003 to 2023. It includes data for each country broken down by year and a total for each time period.

Key Information

• WHO reports only laboratory-confirmed cases.
• All dates refer to the onset of illness.
• Total number of cases includes the number of deaths.
• Data is as of 5 January 2023.

Main Points by Period

2003-2009

• Total Cases: 468
• Total Deaths: 282
• Key Countries:
  • Viet Nam: 112 cases, 57 deaths
  • Indonesia: 162 cases, 134 deaths
  • China: 38 cases, 25 deaths
  • Egypt: 90 cases, 27 deaths
  • Cambodia: 9 cases, 7 deaths
  • Azerbaijan: 8 cases, 5 deaths
  • Bangladesh: 1 case, 0 deaths
  • Nigeria: 1 case, 1 death
  • Pakistan: 3 cases, 1 death
  • Lao People's Democratic Republic: 2 cases, 2 deaths
  • Myanmar: 1 case, 0 deaths
  • Nepal: 1 case, 1 death
  • United Kingdom: 1 case, 0 deaths
  • United States of America: 1 case, 0 deaths

2010-2014

• Total Cases: 200
• Total Deaths: 168
• Key Countries:
  • Viet Nam: 7 cases, 2 deaths
  • Indonesia: 35 cases, 31 deaths
  • Cambodia: 47 cases, 30 deaths
  • Egypt: 120 cases, 50 deaths
  • China: 9 cases, 5 deaths
  • Thailand: 25 cases, 17 deaths
  • Bangladesh: 6 cases, 1 death
  • Lao People's Democratic Republic: 1 case, 0 deaths
  • Nigeria: 1 case, 1 death
  • Canada: 1 case, 1 death

2015-2019

• Total Cases: 160
• Total Deaths: 48
• Key Countries:
  • Egypt: 149 cases, 43 deaths
  • Viet Nam: 15 cases, 7 deaths
  • Indonesia: 3 cases, 3 deaths
  • China: 6 cases, 1 death
  • Cambodia: 47 cases, 30 deaths
  • Nepal: 1 case, 1 death
  • Thailand: 25 cases, 17 deaths
  • Bangladesh: 1 case, 0 deaths
  • Lao People's Democratic Republic: 1 case, 0 deaths
  • Myanmar: 1 case, 0 deaths

2020-2023

• Total Cases: 868
• Total Deaths: 457
• Key Countries:
  • Viet Nam: 127 cases, 64 deaths
  • Egypt: 359 cases, 120 deaths
  • Indonesia: 200 cases, 168 deaths
  • China: 54 cases, 32 deaths
  • Thailand: 25 cases, 17 deaths
  • Bangladesh: 8 cases, 1 death
  • Lao People's Democratic Republic: 3 cases, 2 deaths
  • Nigeria: 1 case, 1 death
  • United Kingdom: 1 case, 0 deaths
  • United States of America: 1 case, 0 deaths

Overall Trends

• The number of confirmed human cases and deaths due to avian influenza A(H5N1) has fluctuated over the years.
• Viet Nam and Egypt have consistently reported the highest number of cases and deaths.
• Indonesia and China also showed significant numbers of cases, especially in the early years.
• The United States of America and United Kingdom reported only a few cases, with no deaths.
• The total number of cases increased significantly in 2020-2023, indicating a resurgence or continued presence of the virus in certain regions.

Conclusion

The cumulative data shows that avian influenza A(H5N1) has been a significant public health concern in several countries, particularly in Southeast Asia and the Middle East. While the number of cases has varied over time, the overall trend indicates a sustained presence of the virus, with Viet Nam and Egypt being the most affected. The WHO continues to monitor and report on laboratory-confirmed cases, emphasizing the importance of surveillance and prevention measures.