美国和加拿大各地蚊子体内发现的西尼罗河病毒;卫生官员敦促保护。 West Nile virus found in mosquitoes across U.S. and Canada; health officials urge protection.

西尼罗河病毒在美国和加拿大多个地区的蚊子中被发现,包括密歇根州卡拉马佐县、宾夕法尼亚州Mercer县、格鲁吉亚DeKalb县和安大略省各地区。 West Nile virus has been detected in mosquitoes in multiple areas across the U.S. and Canada, including Kalamazoo County, Michigan; Mercer County, Pennsylvania; DeKalb County, Georgia; and various regions in Ontario. 卫生官员建议居民保护自己, 使用昆虫驱虫剂, 穿长袖和长裤, Health officials advise residents to protect themselves by using insect repellent, wearing long sleeves and pants, and removing standing water where mosquitoes can breed. 虽然大多数感染造成轻微症状,但老年人和免疫系统衰弱者患重病的风险更高。 While most infections cause mild symptoms, seniors and those with weakened immune systems are at higher risk of severe illness. 在这些地区尚未报告任何人类案件。 No human cases have been reported yet in these areas.