2021-08-07-世界卫生组织-Influenza_at_the_human-animal_interface_summary_and_assessment,_8_August_2021_4页_264kb

Influenza at the Human-Animal Interface Summary (June 23 – August 8, 2021)

New Cases

• Avian Influenza A(H5N1): One human case reported from India (an 11-year-old boy with underlying immunodeficiency, died on July 12, 2021).
• Avian Influenza A(H5N6): Six human cases reported from China (sporadic infections linked to live poultry exposure).

Risk Assessment (Unchanged)

• H5 and H7N9 Viruses: No sustained human-to-human transmission likely.
• Risk of Spread: Fewer than one in ten infected individuals will transmit the virus to close contacts; international spread by travelers unlikely to lead to further community transmission.
• WHO Advice: Avoid contact with live poultry, maintain hand hygiene; no special traveler screening required currently.

Ongoing Recommendations

• Maintain global surveillance for influenza.
• Follow guidance from WHO, OIE, and FAO for human-animal interface risks.
• Ensure prompt notification of novel influenza infections per IHR (2005).