Overview

• The three-year-old girl, Mexico's first confirmed human fatality from H5N1, succumbed to respiratory complications and multiple organ failure.
• Comprehensive contact tracing tested 38 individuals who had contact with the girl; all results were negative for H5N1, indicating low transmission risk.
• The source of the girl’s infection remains unknown, with investigations ongoing to determine how she contracted the virus.
• H5N1 is primarily transmitted through contact with infected birds or contaminated environments, with no evidence of sustained human-to-human transmission, according to the WHO.
• Other recent human fatalities from H5N1 have been reported in Cambodia and the United States, emphasizing the global nature of the virus and the need for vigilance.