Avian influenza virus H7N3 confirmed in two poultry workers in British Columbia who developed flu-like symptoms.
Avian influenza virus H7N3 confirmed in two poultry workers in British Columbia who developed flu-like symptoms.
英国哥伦比亚两名出现流感样症状的家禽工人被证实感染H7N3禽流感病毒。