Prevalence of periodontal disease among Vietnamese adults: A systematic review and meta-analysis.

To synthesize previous findings on the prevalence of periodontal disease (PD) in the adult Vietnamese population, a search for peer-reviewed literature was conducted using the MEDLINE, PubMed and Scopus databases through January 10, 2022. Two reviewers individually assessed abstracts and full-text articles to determine their suitability for inclusion. Only English articles were included if their results described the prevalence of PD among the Vietnamese. Among 900 potential studies, 8 cross-sectional studies with 7,262 adult participants qualified to be included. We found that overall the prevalence of PD was 64.9% (95% confidence interval (CI): 45-81%), with very high heterogeneity across the observed prevalence estimates (Q = 1,204.8776; df = 7; p < 0.001; I2 = 99.42%). Further subgroup analyses stratified by age, location, sampling, study design, and region also revealed significant differences, with a higher prevalence of PD among (1) population-based studies, (2) participants aged ≥65 years, (3) participants with non-chronic diseases, (4) studies using the WHO, community periodontal index (CPI) and standard oral examinations, (5) studies conducted in Central Vietnam, and (6) studies using randomization sampling (p < 0.01) than in other populations. Sensitivity analyses validated the stability of the current findings. Within the limits of the available evidence, this meta-analysis showed a high percentage of Vietnamese adults suffer from PD. Nonetheless, the findings should be taken cautiously due to the limited number of published articles and the possibility of bias in the included research. More well-designed studies with larger sample sizes are thus required for further verification.

Students' Perceived Well-Being and Online Preference: Evidence from Two Universities in Vietnam during COVID-19.

University education is still being impacted two years after the COVID-19 outbreak. We performed a rapid survey in February 2022 at two public universities in Vietnam to examine the effects of the pandemic on well-being and the factors that may associate with online class preference among university students as well as to investigate the need for support to improve resilience. A web-based survey included 1589 undergraduate students in total. Both quantitative and qualitative data analysis was carried out. Overall, approximately a quarter of respondents said that they perceived an influence on their health, 42.9% expressed stress, and more than 70% reported worrying about the future. In total, 61.9% of the respondents reported having satisfaction with online classes, while over half of them preferred a program of 50% online classes. Students who live in an urban area, are female, have had pre-COVID-19 campus life experience, have decreased income, and/or experience low online satisfaction and over-information may be in need of more support. The results show implications for universities to consider policies addressing well-being and post-pandemic online education. Providing support to university students to improve their resilience against the impact on their studying, campus life, health, and well-being should be prioritized during and post-pandemic.

Prevalence Of mcr-1 Among Cefotaxime-Resistant Commensal Escherichia coli In Residents Of Vietnam.

PURPOSE: The dissemination of colistin-resistant bacteria harboring the colistin-resistance gene mcr-1 in developing countries has recently entered the spotlight as an emerging public health threat, which is attributed to the abuse of colistin use in these countries. However, the prevalence of these bacteria in developing countries has not been extensively investigated. Therefore, in the present study, we examined the prevalence of cefotaxime-resistant commensal Escherichia coli harboring mcr-1 among residents of a representative Vietnamese village and assessed the characteristics of these isolates. MATERIALS AND METHODS: The stool samples, one stool sample per resident, of 612 residents were cultured on MacConkey agar with cefotaxime. Resulting E. coli-like colonies were isolated and examined further for the presence of colistin-resistant extended-spectrum ß-lactamase (ESBL)-producing E. coli with mcr-1. Antibiotic susceptibility tests were performed, and clonal relationship among colistin-resistant isolates was assessed. RESULTS: Thirty-one of the 451 cefotaxime-resistant E. coli isolates were resistant to colistin and the majority possessed mcr-1, blaCTX-M , and/or blaTEM , except for two isolates that produced the AmpC ß-lactamase. All mcr-1 ESBL-producing E. coli isolates were multidrug-resistant (5-11 antibiotics). The isolates contained various plasmid replicon types, including the most prevalent types IncHI2 (54.8%), IncFIB (48.4%), and IncN (41.9%). In addition, 83.9% of the mcr-1 ESBL-E. coli isolates possessed a transposon ISApl1-mcr-1 segment. Furthermore, 77.4% of the mcr-1 ESBL-E. coli isolates belonged to phylogenetic group A. Pulsed-field gel electrophoresis analysis indicated limited clonal expansion of a specific strain. CONCLUSION: These results demonstrate the wide dissemination of colistin-resistant ESBL-E. coli harboring mcr-1 among commensal bacteria of rural residents in Vietnam, suggesting possible mobilization of the mcr-1 gene among ESBL-producing microbiota, which is a great public health concern.