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Swine and bird flus are specific subtypes of influenza a.

猪流感和禽流感都属于甲型流感。

Suiting up for flus second wave .

加拿大为应对流感的第二次浪潮武装起来。

Colds and flus are spreading rapidly , aid workers say .

救援人员说，伤风和流感正迅速传播。

Both the new strain and seasonal flus will be circulating in the world , increasing the risk of flus mixing in mecca .

新流感病毒和季节性流感病毒将在全球传播，这也加大了不同流感病毒在麦加发生混合的危险性。

Unlike typical flus , which usually hit the old and weak , the young and healthy appear to be falling victim to this new disease .

年轻健康的人似乎成为了这种新病毒的易感人群，而不像普通的流感病毒那样，通常是年老体衰的人感染。