Document 0301 DOCN M9590301 TI Investigation of transmission of blood-borne viruses. DT 9509 AU Chant K; Public Health Unit, SWSAHS, Liverpool, NSW. SO Annu Conf Australas Soc HIV Med. 1994 Nov 3-6;6:206 (unnumbered abstract). Unique Identifier : AIDSLINE ASHM6/95291798 AB The potential for transmission of blood-borne viruses in settings with poor infection control practices has been well recognised. Today we are becoming increasingly aware of the potential for the transmission of blood-borne viruses in settings where infection control procedures are widely practised. This increasing awareness has in part been prompted by two recent investigations undertaken in NSW. The first related to possible patient-to-patient transmission of human immunodeficiency virus (HIV) to 4 patients undergoing excision of skin lesions in an office practice and the second related to possible patient-to-patient transmission of hepatitis C involving four patients undergoing surgical procedures in a private hospital. Both investigations emphasise the need to collect accurate risk factor histories from patients with blood-borne viruses and the importance of not discounting the possibility of unusual or previously unreported modes of transmission. The selective investigation of individuals without conventional risk factors for infection with their consent may add to our understanding of viral transmission. However the decision to proceed with an investigation requires a consideration of the weight of the evidence, the resource implications of the investigation, the likelihood of contributing to new knowledge and public health implications. Most investigations of nosocomial transmission of blood-borne viruses fail to identify a precise mechanism of transmission. In both investigations no clear mechanism was identified although some likely modes of transmission were postulated. The risk factor status of the probable source patient in both investigations was not known to the treating clinicians at the time of the procedure, thus reinforcing the importance of the principle of universal precautions. Finally investigations of this nature demonstrate the importance of infection control practices and procedures in preventing the transmission of blood-borne viruses in health care settings and the need to have a mechanism for their regular review. DE *Blood-Borne Pathogens Cross Infection/PREVENTION & CONTROL/*TRANSMISSION *Disease Transmission, Patient-to-Professional Human HIV Infections/PREVENTION & CONTROL/*TRANSMISSION New South Wales Occupational Diseases/*ETIOLOGY/PREVENTION & CONTROL *Patient Care Team Risk Factors MEETING ABSTRACT SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).