Measles, mumps and influenza are common diseases.(麻疹、腮腺炎和流感是常见病。)
Since children seldom develop serious complications from influenza, no significant public health benefit would result from widespread vaccination of children using the nasal spray.(由于儿童很少出现流感的严重并发症，因此为儿童广泛接种鼻腔喷雾疫苗不会带来显著的公共卫生效益。)
The threat of an influenza pandemic has not receded.(流感大流行的威胁尚未消退。)
Numbers of deaths for seasonal influenza are estimates.(季节性流感死亡人数是估计值。)
The risk of pandemic influenza is serious.(流感大流行的风险很严重。)
Ferrets are especially prone to influenza viruses.(白鼬特别容易受到流感病毒的袭击。)
Should people continue to be vaccinated against seasonal influenza?(人们应该继续接种抵抗季节流感吗？)
No. Swine influenza viruses are not transmitted by food.(不会，猪流感病毒不会通过食物传播。)
A new influenza virus is spreading across the globe.(一种新型流感病毒正在全球蔓延。)
Influenza viruses circulate in every part of the world.(流感病毒在世界上所有地方传播。)
