text: Dr Nguyen Tri Dung, director of the HCMC Center for Disease Control (HCDC), said that analysis of clinical factors and test results suggested that the person may be newly infected, with a currently unknown source of transmission?
classes:  No, the HCMC Center for Disease Control is rushing to review and speed up the search for the source of the suspected infection.  Also, the HCMC Center for Disease Control is rushing to review and speed up the search for the source of the suspected infection.  Yes, the HCMC Center for Disease Control is rushing to review and speed up the search for the source of the suspected infection.