According to the US centers for disease control and prevention observers say the current outbreak raises serious concerns.

根据美国疾病控制和预防中心的说法，观察人士表示，目前的疫情引发了严重的担忧。

That's based on a 2013 study conducted by the center for disease, control and prevention.

该结果来源于美国疾病控制与预防中心2013年进行的调查。

The U.S. centers for disease control and prevention or CDC is expanding a program that detects COVID-19 to include more than 30 pathogens.

美国疾病控制和预防中心正在扩大COVID-19检测项目，新项目会检测30多种病原体。

New guidance for fully vaccinated people will likely be coming soon from the centers for disease control and prevention.

病毒控制和防疫中心会很快出炉针对已接种疫苗人群的防疫指导意见。