Dr. Huerta: "The pose is not prepared for a pandemic"

Health authorities in China have not been able to identify a pneumonia strain that has infected dozens of people. The spread of this virus also causes concern in the rest of Asia although they rule out that it is the return of severe and fatal acute respiratory syndrome (known as SARS). Dr. Elmer Huerta, an expert in public health, tells us about this virus: what could have caused it and how it manifests itself.