英语新闻听写 美国流行性腮腺炎病例升至10年来最高（在线收听）

According to health officials, cases for the contagious disease Mumps has hit a 10-year high in the United States.

据卫生官员称，美国流行性腮腺炎病例已达到10年来的最高水平。

Officials add that the disease is especially common on college campuses.

官员补充道，这种疾病在大学校园尤为常见。

Before a mumps vaccine became widely available back in 1967, nearly every child in the U.S. would get infected. Since then, cases have declined over 99 percent.

在1967年流行性腮腺炎疫苗在美国普及之前，几乎每个孩子都会受到感染。此后，这一发病率已下降百分之99以上。

Symptoms for Mumps typically begin 16 to 18 days after infection.They then last around 7 to 10 days.

流行性腮腺炎症状通常在感染后16至18天出现，约持续7天到10天左右。

Up to 40 percent of people with mumps have mild symptoms and may not even realize they are sick. However, they can still spread the disease to others.

多达百分之40的腮腺炎患者有轻微的症状，甚至可能没有意识到他们生病了。但是他们仍会将这一疾病传染给他人。