Birds can be infected by a variety of routes other than mosquito bites, and different species may have different potential for maintaining the transmission cycle.
除蚊叮外，鸟类还可以通过多种途径感染，但不同物种在维持传播循环方面的可能性也各不相同。
Malaria is caused by a parasite that spends part of its life cycle inside the mosquito, and is passed along to humans by mosquito bites.
疟疾的成因是寄生在蚊子上的疟疾原虫，并经由蚊子叮咬后传染给人类。
West Nile virus (WNV) infection is an endemic disease caused by WNV that is maintained in a natural transmission cycle involving mosquito vectors and bird reservoir hosts.
西尼罗病毒(WNV)感染是一种经蚊虫传播，以鸟类为主要动物宿主的自然疫源性疾病。
West Nile virus (WNV) infection is an endemic disease caused by WNV that is maintained in a natural transmission cycle involving mosquito vectors and bird reservoir hosts.
西尼罗病毒(WNV)感染是一种经蚊虫传播，以鸟类为主要动物宿主的自然疫源性疾病。
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