Psychological distress among Vietnamese adults attending Vietnamese-speaking general practices in South Western Sydney: prevalence and associations.

Objective: The aim of the present study was to determine the prevalence of psychological distress among Vietnamese adults attending Vietnamese-speaking general practices and explore possible risk factors in this population.Methods: A cross-sectional survey of Vietnamese adult patients was conducted at 25 general practices with Vietnamese-speaking general practitioners (GPs) in south-western Sydney between October 2012 and February 2013. Patients completed the Kessler (K10) scale and a demographic questionnaire, available in Vietnamese or English. Data were analysed using SPSS version 21.Results: Of the 350 patients invited to participate, 247 completed surveys (response rate 71%). One-quarter (25%) of participants had a very high K10 score for psychological distress, nearly twice that reported in the NSW Health Survey. Participants with high exposure to trauma were at increased risk of psychological distress (odds ratio 5.9, 95% confidence interval 2.4-14.4; P < 0.0001) compared with those with mild or no trauma exposure. Similarly, risk was increased if there was a past history of mental health problems and a lack of personal and social support.Conclusion: The high prevalence of mental health problems in adult Vietnamese people attending Vietnamese-speaking general practices is associated with exposure to trauma. This highlights the importance of personal, social and professional support in effective management. Vietnamese-speaking GPs who see Vietnamese or similar refugee groups should actively seek out a history of exposure to trauma, a past history of mental illness and the existence of support systems.

Isolation of New Delhi metallo-ß-lactamase 1-producing Vibrio cholerae non-O1, non-O139 strain carrying ctxA, st and hly genes in southern Vietnam.

Vibrio cholerae non-O1, non-O139 (VC_NAG) organisms are universally present in the aquatic environment and regarded as non-pathogenic bacteria. However, considering that they do occasionally induce gastroenteritis, a study of their virulence and antibiotic resistance genes is important. The presence of enteropathogenic genes, including ctxA, VC_NAG-specific heat-stable toxin gene (st), hemolysin (hly), and zona occludens toxin (zot) was determined by PCR in 100 VC_NAG strains isolated in southern Vietnam in 2010-2013 from 94 environmental and six human origins. These 100 VC_NAG strains were also tested phenotypically and genotypically for the presence of the New Delhi metallo-ß-lactamase (NDM-1). Of the 100 VC_NAG strains tested, six were positive for ctxA; five from the environment and one of human origin. The st gene was detected in 17 isolates, 15 and two of which were of environmental and human origins, respectively. Gene hly was detected in 19 VC_NAG strains examined, two of which were isolated from humans and 17 from environments. The zot gene was not detected in any of the strains tested. Three VC_NAG strains of environmental origin were confirmed to produce NDM-1 and the blaNDM-1 gene was detected in those strains by PCR. Of note, one of the three NDM-1-producing VC_NAG strains was confirmed to carry ctxA, st and hly genes concurrently. This is the first report of isolation of NDM-1-producing VC_NAG strains in Vietnam.