TY - JOUR AU - Liem, Nguyen Thanh AU - Lim, Wilina T1 - Lack of H5N1 Avian Influenza Transmission to Hospital Employees, Hanoi, 2004 T2 - Emerging Infectious Disease journal PY - 2005 VL - 11 IS - 2 SP - 210 SN - 1080-6059 AB - To establish whether human-to-human transmission of influenza A H5N1 occurred in the healthcare setting in Vietnam, we conducted a cross-sectional seroprevalence survey among hospital employees exposed to 4 confirmed and 1 probable H5N1 case-patients or their clinical specimens. Eighty-three (95.4%) of 87 eligible employees completed a questionnaire and provided a serum sample, which was tested for antibodies to influenza A H5N1. Ninety-five percent reported exposure to >1 H5N1 case-patients; 59 (72.0%) reported symptoms, and 2 (2.4%) fulfilled the definition for a possible H5N1 secondary case-patient. No study participants had detectable antibodies to influenza A H5N1. The data suggest that the H5N1 viruses responsible for human cases in Vietnam in January 2004 are not readily transmitted from person to person. However, influenza viruses are genetically variable, and transmissibility is difficult to predict. Therefore, persons providing care for H5N1 patients should continue to take measures to protect themselves. KW - Avian influenza A virus KW - patient- to-professional disease transmission KW - seroepidemiologic study KW - Vietnam DO - 10.3201/eid1102.041075 UR - https://wwwnc.cdc.gov/eid/article/11/2/04-1075_article ER - End of Reference