Dr. frieden says obesity is also an increasing health problem .
弗里登博士说肥胖也日益成为一个健康问题。
The bouts of heavy drinking increase the risk of being involved in a fatal car crash , contracting a sexually transmitted disease , dating violence , and drug overdoses , frieden said .
经常酗酒酒增加了致命车祸的危险，性功能减退，恋爱暴力，吸毒过量，布鲁尔说。
No new cases have been identified in the u.s. , and illness hasn 't spread , cdc director thomas frieden said .
该中心主任弗里登（thomasfrieden）说，美国还没有发现新病例，疫情尚未扩散。
However , there are no signs that the virus is mutating to become more deadly , as some scientists feared , cdc director thomas frieden said .
