Southern Vietnam Research Articles

Prevalence and Genetic Diversity of Entamoeba and Cryptosporidium in Pigs and Wild Boars in Central and Southern Vietnam: Implications for Zoonotic Risks and Surveillance.

Background: Parasites of Entamoeba and Cryptosporidium genera, prevalent among various vertebrates such as humans and pigs, pose a zoonotic threat as common protozoan pathogens. This study investigated the prevalence and genetic diversity of Entamoeba and Cryptosporidium species in pigs and wild boars across central and southern Vietnam, to ascertain parasite transmission dynamics. Methods: A total of 113 independent stool samples from 77 pigs and 36 wild boars were analyzed using PCR-based molecular methodologies to detect the presence of Entamoeba spp. and Cryptosporidium spp. The identified species were further characterized through Sanger sequencing, and phylogenetic relationships were analyzed. Results: The study revealed a high prevalence of Entamoeba spp. (62%, n = 70/113) and Cryptosporidium spp. (31%, n = 35/113). Entamoeba suis (57%, n = 40) was predominant, followed by Entamoeba polecki (40%, n = 40) and Entamoeba hartmanni (3%, n = 2). Among Cryptosporidium species, Cryptosporidium scrofarum (89%, n = 31) was the most common, followed by Cryptosporidium suis (11%, n = 4). Wild boars exhibited a higher prevalence of Entamoeba infection compared with domestic pigs (p = 0.019). Conclusions: The study highlights a high prevalence of Entamoeba and Cryptosporidium, suggesting a potential for zoonotic transmission in Vietnam. Further investigations are necessary to determine the extent to which these parasites in pigs and wild boars contribute to the burden in the human population.

Microplastic pollution in coastal surface seawater of Southern Vietnam.

Microplastics have recently emerged as a significant environmental concern due to their direct impacts on marine ecosystems. Vietnam, with its 3260-km coastline, faces an elevated risk of microplastic pollution due to various coastal anthropogenic activities. This study explored microplastic distribution in coastal surface seawater in the Southern Vietnam regions of Tien Giang, Can Gio, and Vung Tau. A total of 45 samples were collected in April, 2019, and the results showed that microplastics present at all sampling sites, with the abundance varying from 0.074 ± 0.109 pieces/m3 in Can Gio to 0.56 ± 0.35 pieces/m3 in Tien Giang. Estuarial sites showed higher abundances for all regions. Most microplastics were under 2.8mm, fragmented, and primarily white or transparent. Polypropylene, polyethylene, and ethylene-vinyl acetate were the dominant polymers. This research indicates the urgency of further investigations to comprehensively understand the influence of wind patterns and other environmental factors on microplastic distribution.

Streptococcus suis-Associated Meningitis in a Southern Region of Vietnam.

Streptococcus suis is the most common and severe cause of meningitis in Vietnam, but the recent data about epidemiological characteristics and sequelae are still inadequate. We performed a retrospective study to describe the epidemiology, clinical characteristics, and outcomes of patients with S. suis-associated meningitis. A retrospective study was carried out by searching records from the Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam, between January 2016 and January 2020. All data concerning epidemiological, clinical, and subclinical characteristics and treatment results were collected and analyzed. Over the study period, 153 cases were included in this study, with 95 cases occurring in the 2016-2017 period. The median age of all patients was 52 years (range, 29-90 years), and 70.6% of patients were male. Fifty-two patients (34%) were farmers, and the Mekong Delta was the region with the highest number of cases (60.1%). The most frequent manifestation of infection was fever (151/153, 98.7%), followed by hearing loss (64/153, 41.8%), and one patient (0.7%) died. All isolates remained susceptible to ceftriaxone, penicillin, vancomycin, and levofloxacin, whereas 99.2% of isolates were resistant to tetracycline. Occupational exposure to pigs and the consumption of contaminated food have been identified as primary risk factors associated with this zoonosis, and our study found no significant changes in epidemiological factors compared with past data. The Mekong Delta continues to be the most affected region for S. suis meningitis in southern Vietnam, with S. suis serotype 2 remaining the most relevant agent.

Yersinochloanianheana (Poaceae, Bambusoideae), a new species from southern Vietnam.

Yersinochloanianheana sp. nov. from Vietnam is described and illustrated. It is found in southern Vietnam, where it occurs at an elevation of 1400-1500 m in Voi Mountain, Duc Trong District, Lam Dong Province. This new species is distinguished from a similar species, Yersinochloadalatensis, by culm nodes with a thick swollen patella, culm leaf blades erect, auricles conspicuous, margins bearing long hairs, palea dorsal view showing rachilla extension and rudimentary floret at the apex and lodicules purple gradually towards the top. Besides that, the species is distinguished from Yersinochloanghiana by the leaf blades without being swollen at the base, the prophyllate bud 2-keeled, lodicules purple at ½ upper parts and unbifid at the base.

Nature-inspired optimization of weighted-feature ensemble model to predict the deflection of corroded reinforced concrete beam

Steel corrosion is a significant concern for the structural integrity of reinforced concrete (RC) beams, leading to a decline in durability throughout a building's lifespan. Assessing the deflection of corroded RC beams is essential for maintaining structural safety and longevity. This study introduces a novel nature-inspired weighted-feature ensemble model (NiwE) that integrates two distinct machine learning algorithms: least squares support vector regression and radial basis function neural network, both optimized by beluga whale optimization to predict the deflection of corroded RC beams. The primary objective is to enhance the predictive accuracy of deflection measurements, offering a robust tool for evaluating structural performance under corrosion-induced damage. The model was developed and validated using a comprehensive dataset comprising 180 samples collected from aging residential buildings in southern Vietnam. A cross-validation approach was employed in this process to ensure a robust and reliable evaluation of the models. The results show that the NiwE model achieved superior predictive accuracy compared to existing methods, with an RMSE of 1.739 mm, MAE of 1.115 mm, and R2 of 0.926 in testing. Remarkably, the NiwE model was able to determine weight values that facilitate the discovery of new feature combinations, achieving significantly higher accuracy than existing models. The proposed model offers civil engineers a valuable tool for estimating deflection in corroded RC beams and opens new pathways for optimizing building structures, developing early warning systems, and implementing timely maintenance measures to ensure safety and resilience.

Social Influences, Cognitive Competence, Problem-Solving Skills: A Case Study of Problem-Solving Skills in the Context of Digitalization Adoption

The purpose of this research was to investigate the relationships between social influences related to digital transformation adoption and cognitive competency in forming problem-solving skills. A deduction approach associated with the positivist philosophy was employed in order to build up the research model to explain the process of shaping problem-solving skills. By sending questionnaires randomly via Google Forms, a cross-sectional study with 337 respondents aged 17 years and older, including men and women with an education level of high school or higher, was conducted in southern Vietnam. Prior to assessing the measurement and structural models, the reliability and validity of measurement scales were examined by Cronbach’s alpha using SPSS software. The SmartPLS software then was utilized to analyze the measurement and structural models and test the hypotheses using partial least squares structural equation modelling. According to research findings, social influences associated with the implementation of digital transformation had a direct positive impact on workers' cognitive competency as well as their problem-solving skills. In addition, the research model also demonstrated the effects of cognitive processes when receiving social impacts through direct and indirect mechanisms on problem-solving skills, in which low thinking ability was the foundation for high thinking and creative abilities. Based on these findings, the research opened a novel approach to problem-solving skills through the mechanism of the impacts of stimuli on organisms and organisms on responses that were a premise for managers to provide and orient information to improve employees' cognitive abilities and problem-solving skills.

Development of Machine Learning and Deep Learning Prediction Models for PM2.5 in Ho Chi Minh City, Vietnam

The application of machine learning and deep learning in air pollution management is becoming increasingly crucial, as these technologies enhance the accuracy of pollution prediction models, facilitating timely interventions and policy adjustments. They also facilitate the analysis of large datasets to identify pollution sources and trends, ultimately contributing to more effective and targeted environmental protection strategies. Ho Chi Minh City (HCMC), a major metropolitan area in southern Vietnam, has experienced a significant rise in air pollution levels, particularly PM2.5, in recent years, creating substantial risks to both public health and the environment. Given the challenges posed by air quality issues, it is essential to develop robust methodologies for predicting PM2.5 concentrations in HCMC. This study seeks to develop and evaluate multiple machine learning and deep learning models for predicting PM2.5 concentrations in HCMC, Vietnam, utilizing PM2.5 and meteorological data over 911 days, from 1 January 2021 to 30 June 2023. Six algorithms were applied: random forest (RF), extreme gradient boosting (XGB), support vector regression (SVR), artificial neural network (ANN), generalized regression neural network (GRNN), and convolutional neural network (CNN). The results indicated that the ANN is the most effective algorithm for predicting PM2.5 concentrations, with an index of agreement (IOA) value of 0.736 and the lowest prediction errors during the testing phase. These findings imply that the ANN algorithm could serve as an effective tool for predicting PM2.5 concentrations in urban environments, particularly in HCMC. This study provides valuable insights into the factors that affect PM2.5 concentrations in HCMC and emphasizes the capacity of AI methodologies in reducing atmospheric pollution. Additionally, it offers valuable insights for policymakers and health officials to implement targeted interventions aimed at reducing air pollution and improving public health.

Unique Features of Extremely Halophilic Microbiota Inhabiting Solar Saltworks Fields of Vietnam.

The artificial solar saltworks fields of Hon Khoi are important industrial and biodiversity resources in southern Vietnam. Most hypersaline environments in this area are characterized by saturated salinity, nearly neutral pH, intense ultraviolet radiation, elevated temperatures and fast desiccation processes. However, the extremely halophilic prokaryotic communities associated with these stressful environments remain uninvestigated. To fill this gap, a metabarcoding approach was conducted to characterize these communities by comparing them with solar salterns in northern Vietnam as well as with the Italian salterns of Motya and Trapani. Sequencing analyses revealed that the multiple reuses of crystallization ponds apparently create significant perturbations and structural instability in prokaryotic consortia. However, some interesting features were noticed when we examined the diversity of ultra-small prokaryotes belonging to Patescibacteria and DPANN Archaea. Surprisingly, we found at least five deeply branched clades, two from Patescibacteria and three from DPANN Archaea, which seem to be quite specific to the Hon Khoi saltworks field ecosystem and can be considered as a part of biogeographical connotation. Further studies are needed to characterize these uncultivated taxa, to isolate and cultivate them, which will allow us to elucidate their ecological role in these hypersaline habitats and to explore their biotechnological and biomedical potential.

Association between emotional intelligence and mental health status based on sex differences among undergraduates in Vietnam

Public health concerns about mental health problems have recently received attention, particularly since the COVID-19 pandemic. Emotional intelligence (EI) is a significant factor linked to mental health status, including depression, anxiety, and stress (DAS), with sex playing a significant role in both DAS and EI status. This study aimed to describe DAS and EI status and assess sex differences in the associations between EI and DAS among undergraduate students. A cross-sectional study was conducted across three educational institutions in Dong Thap province, southern Vietnam, using the validated Schutte Self-Report Emotional Intelligence Test (SSEIT) and the 21-item Depression, Anxiety, and Stress Scale (DASS-21). Spearman correlation analysis was used to identify correlations between DAS and EI, and the sex differences in the associations between DAS and the four SSEIT constructs - emotion perception (EP), utilizing emotion (UE), managing self-relevant emotion (MSE), and managing others' emotion (MOE) - were examined using linear regression models. Among the 674 participants, 51.6% experienced mental health problems (64.1% for females, 35.9% for males), 47.0% experienced anxiety, 32.5% experienced depression, and 27.4% experienced stress. The average EI score was 119.3 ± 18.9 (120.0 ± 19.1 for females, 118.0 ± 18.5 for males), with 58.9% of participants having normal EI, while 29.2% and 11.9% had low and high EI, respectively. Negative correlations were observed between EI scores and depression (R=-0.16, p<0.001) and anxiety (R=-0.09, p=0.020), especially among females. Findings indicated that MSE showed significant associations with DAS, especially in females (all β<-0.318, all p<0.001). Our study highlights the importance of considering sex in mental health prevention programs targeting EI skills to manage students' self-relevant emotions better.

Recurrence Rate and Associated Factors of Primary Fallopian Tube Carcinoma in the South of Vietnam

Abstract Objectives: This study aimed to determine the recurrence rate and related risk factors of primary fallopian tube cancer (PFTC). Materials and Methods: We conducted a retrospective study of 47 patients with histopathological diagnosis of PFTC treated at Tu Du Hospital between January 1, 2015, and July 31, 2022. The cumulative recurrence rate was estimated using the life table method, and recurrence-associated factors were determined using the Log–rank test and Cox proportional hazard model. Results: The median follow-up period was 40 months (range, 7–96 months). Eight patients (17.0%) experienced recurrence. The cumulative recurrence rate of PFTC patients at 12 months was 4.4% (95% confidence interval [95% CI]: 1.12–16.45), at 24 months was 9.1% (95% CI:3.52–22.5), at 36 months was 14.9% (95% CI: 6.92–30.41), at 48 months was 19.3% (95% CI: 9.35–37.24), and at 60 months was 25.7% (95% CI: 12.68–47.88). A higher recurrence rate was significantly associated with elevated pretreatment CA 125 level (<35 U/mL vs. ≥35 U/mL, hazards ratio [HR] = 36.9, 95% CI: 1.47–921.37), advanced FIGO stages (Stage I-II vs. stages III, HR = 6.61, 95% CI: 1.18–36.93), and suboptimal debulking surgery (residual disease ≤1 cm vs. residual disease >1 cm, HR = 7.52, 95% CI: 1.47–38.49). Conclusion: The overall recurrence rate of PFTC patients in Southern Vietnam was 17.0%. Appropriate follow-up strategies for patients with high-risk factors are needed for early detection and management of recurrence.

Mobilizing Frontiers

Since the late 17th century, the Mekong Delta has become a vibrant place for Vietnamese, ethnic Khmer, and ethnic Chinese settlements, forming mixed communities in terms of race and culture. As a new frontier, the Delta has continuously undergone state-sponsored “civilizing” processes. The resulting hybridity in folk culture gave birth to various religious sects, especially on the Vietnamese-Cambodian border. From the view of late imperial Confucianism, these groups were judged as “heretical sects” and their leaders “heretical masters”. Despite being classified as “heretical”, these local “masters” and their communities still insisted on the core Confucian values of benevolence, righteousness and patriotism. Chinese secret societies and rebels escaped to the Delta in different times, bringing new ideas to the region, especially the cults of Five Lord Buddhas, Maitreya, and the concept of the birth of the wise king. Under French suppression, these “heretical masters” changed their religious strategies, supported local military leaders and secret societies to “fight the French and restore Đại Nam”. This research aims to investigate and analyse the “heretical” religious movements and ideological transformation of “heretical masters” in the Mekong River Delta in the late 19th and early 20th centuries, thereby strengthening the argument that although Vietnam’s local religious elites were marginalized and suppressed by state governance (the Nguyễn dynasty, French colonialists), they always cared about national independence and social prosperity, and therefore transformed their sectarian strategies into a special form of religio-political hybridity. National independence was definitely prioritized, and therefore the concept of “loyalty” in the traditional Confucian view turned into “patriotism” in the new context of French invasion and colonialization. This study uses a mixture of extensive field data collected between 2015‒2017 and 2022‒2024 (the primary data source for this study) with limited original texts from the Nguyễn dynasty and the research findings of selective previous scholars, and applies the theoretical concept of “standardization” and/or “orthopraxy” from the pre-modern Confucian tradition to examine and analyse political-religious practices, ideological transformation, and implicit narratives among local religious masters in rural Southern Vietnam, confirming that the Mekong Delta has fostered an environment of cultural and religious dynamism and pluralism since the late 19th century.

Predicting the risk of type 2 diabetes: Standardized diabetes risk score among the Khmer ethnic minority in Vietnam.

Predicting the risk of progression to type 2 diabetes, as well as identifying the factors that increase this risk, helps the population adjust the modifiable risk factors, improve quality of life, and reduce the disease burden. A cross-sectional study was conducted on 918 ethnic Khmer minority people aged 40 and above in Vietnam who had never been diagnosed with type 2 diabetes. To predict the 10-year risk of type 2 diabetes, the Finnish Diabetes Risk Scoring Scale, adjusted for the Asian population with modification of the waist circumpherence and Body Mass Index Cut-Offs, was used. The 10-year predicted risk of progression to type 2 diabetes in ethnic Khmer people aged 40 years and older in southern Vietnam, using the Asian-modified Finnish Diabetes Risk Scoring Scale, resulted 10.54% in the total population study, females have a higher risk at 12.62% compared to 8.01% of males. Among the items that make up the Finnish Diabetes Risk Scoring Scale, age, waist circumference, BMI, family history of diabetes, history of high blood glucose, and use of blood pressure medication were the most accurate predictors, with the area under the Receiver operating characteristic (ROC) curve at 0.83, 0.81, 0.77, 0.75, 0.74 and 0.73 respectively. The optimal cut-off score to identify progression to tipe 2 diabetes was 13.5 points (Se = 1.00, Sp = 1.00, p < 0.001). The multivariable logistic regression model shows that factors associated with high risk of type 2 diabetes progression in 10 years are age, gender, occupation, economic status, education level and regular alcohol consumption (p < 0.05). The study results provide a basis for proposing potential solutions to reduce modifiable risk factors for type 2 diabetes in the population. These include providing culturally appropriate health education and changing behavior to address alcohol consumption. The use of the Asian-modified Finnish Diabetes Risk Scoring Scale to predict the risk of progression to type 2 diabetes and as a screening tool for undiagnosed type 2 diabetes is appropriate for the Vietnamese Khmer population.

Challenges in Implementing Child Sexual Abuse Prevention Materials: A Survey of Primary School Teachers

The study investigates the current state of training materials used to prevent child sexual abuse, focusing on their frequency of use and the challenges faced by teachers in implementing these resources. The research surveyed 534 primary school teachers in Can Tho, Ho Chi Minh City and Binh Duong, revealing that while the materials are generally regarded as useful, they are utilized only at an "average" level, with 54.3% of teachers referencing "Books, newspapers, magazines" during lesson planning. Despite the appreciation for the content and form of these resources, the study identifies significant challenges, notably the time and effort required by teachers to select scientifically sound materials, with an average difficulty score of 3.62. The research highlights that the existing materials, although scientifically based, are often too academic and difficult to apply in practical teaching scenarios. The findings underscore the fragmented and emotionally driven nature of current resources, which lack a solid scientific foundation tailored to children's psychological development. Consequently, this results in inadequate access to well-constructed materials by both parents and children. The study's outcomes provide insights into the frequency of use and the obstacles teachers encounter, offering recommendations for improving the accessibility and applicability of these materials. However, the research is limited to a specific geographic area and teacher demographic, suggesting that the results may not be fully representative of the broader southern region or Vietnam as a whole.

The Long-Term Monitoring of Atmospheric Polychlorinated Dibenzo-p-Dioxin Dibenzofurans at a Background Station in Taiwan during Biomass Burning Seasons in El Niño and La Niña Events

To measure the long-range transport of PCDD/Fs, a background sampling site at Mt. Lulin station (Taiwan) was selected based on meteorological information and its location relative to burning events in Southeast Asia. During regular sampling periods, a higher concentration of PCDD/Fs was recorded in 2008 at Mt. Lulin station during La Niña events, with levels reaching 390 fg I-TEQ/m3. In contrast, a higher concentration of 483 fg I-TEQ/m3 was observed in 2013 during biomass burning events. This indicates that La Niña affects the ambient PCDD/F concentrations. The ratio of ΣPCDD/ΣPCDF was 0.59, suggesting significant long-range transport contributions from 2007 to 2023. From 2007 to 2015, the predominant species was 2,3,4,7,8-PCDF, accounting for 25.3 to 39.6% of the total PCDD/Fs. From 2018 onward, 1,2,3,7,8-PCDD became more dominant, accounting for 15.0 to 27.1%. According to the results from the receptor model PMF (n = 150), the sources of PCDD/Fs were identified as dust storms and monsoon events (19.3%), anthropogenic activity (28.5%), and biomass burning events (52.2%). The PSCF values higher than 0.7 highlighted potential PCDD/F emission source regions for Mt. Lulin during biomass burning events, indicating high PSCF values in southern Thailand, Cambodia, and southern Vietnam.

Phylogeography of horseshoe bat sarbecoviruses in Vietnam and neighbouring countries. Implications for the origins of SARS-CoV and SARS-CoV-2.

Previous studies on horseshoe bats (Rhinolophus spp.) have described many coronaviruses related to SARS-CoV (SARSCoVr) in China and only a few coronaviruses related to SARS-CoV-2 (SARSCoV2r) in Yunnan (southern China), Cambodia, Laos and Thailand. Here, we report the results of several field missions carried out in 2017, 2021 and 2022 across Vietnam during which 1218 horseshoe bats were sampled from 19 locations. Sarbecoviruses were detected in 11% of faecal RNA extracts, with much more positives among Rhinolophus thomasi (46%). We assembled 38 Sarbecovirus genomes, including 32 SARSCoVr, four SARSCoV2r, and two recombinants of SARSCoVr and SARSCoV2r (RecSar), one showing a Spike protein very similar to SARS-CoV-2. We detected a bat co-infected with four coronaviruses, including two sarbecoviruses. Our analyses revealed that Sarbecovirus genomes evolve in Vietnam under strong geographical and host constraints. First, we found evidence for a deep separation between viruses from northern Vietnam and those from central and southern Vietnam. Second, we detected only SARSCoVr in Rhinolophus thomasi, both SARSCoVr and SARSCoV2r in Rhinolophus affinis, and only RecSar in Rhinolophus pusillus captured close to the border with China. Third, the bias in favour of Uracil in synonymous third codon positions of SARSCoVr extracted from R. thomasi showed a negative correlation with latitudes. Our results also provided support for an emergence of SARS-CoV in horseshoe bats from northern Yunnan and emergence of SARS-CoV-2 in horseshoe bats from northern Indochina subtropical forests (southern Yunnan, northern Laos and north-western Vietnam).

A cross-sectional study of the quality of work life of hospital pharmacists in southern Vietnam

A cross-sectional study of the quality of work life of hospital pharmacists in southern Vietnam

Settlement Process and Belief Characteristics of the Chinese People in the Southern Vietnam in the XVII-XIX Centuries

Settlement Process and Belief Characteristics of the Chinese People in the Southern Vietnam in the XVII-XIX Centuries

The Ecological-Spiritual Complex in Novels of Southern Vietnam in the First Half of the 20th Century

Ecocriticism began in the 70s of the twentieth century. Up to now, the theory of ecocriticism is becoming more and more complete. Understanding the relationship between humans and nature, in the spirit of ecological humanism, non-anthropocentrism, philosophy of respect for life, and respect for “place” has brought ecocriticism to a new level in literary research. Ecocriticism elevates nature to the level of humans in the symbiotic relationship of coexistence in today's turbulent universe, especially with the threat of an increasingly harsh human living environment (drought, flood, earthquake, disease, etc.). Applying the theory of ecocriticism when studying classic literary works of the world helps scientists reconsider the concept of classical authors on the relationship between the natural environment and humans. With statistical analysis and comparative methods, we use ecological criticism theory to study some Southern Vietnamese novels of the early 20th century, especially the aspect of spiritual ecological complexity.

Immunogenicity of Abdala COVID-19 vaccine in Vietnamese people after primary and booster vaccinations: A prospective observational study in Vietnam

ObjectivesWe studied the immunogenicity after primary and booster vaccinations of the Abdala COVID-19 vaccine, a receptor-binding domain protein subunit vaccine, in Vietnamese people by determining the level of neutralization and cross-neutralization activities against the ancestral SARS-CoV-2 and its variants and SARS-CoV-1. MethodsWe performed a prospective observational study, enrolling adults aged 19-59 years in Dong Thap province, southern Vietnam, and collected blood samples from baseline until 4 weeks after the booster dose. We measured anti-nucleocapsid, anti-spike, and neutralizing antibodies against SARS-CoV-2 and assessed the cross-neutralization against 14 SARS-CoV-2 variants and SARS-CoV-1. Complementary antibody data came from Vietnamese health care workers fully vaccinated with ChAdOx1-S. ResultsAfter primary vaccination, anti-spike antibody and neutralizing antibodies were detectable in 98.4% and 87% of 251 study participants, respectively, with neutralizing antibody titers similar to that induced by ChAdOx1-S vaccine. Antibody responses after a homologous (Abdala COVID-19) or heterologous (messenger RNA BNT162b2) booster could neutralize 14 SARS-CoV-2 variants (including Omicron) and SARS-CoV-1. ConclusionsAbdala COVID-19 vaccine is immunogenic in Vietnamese people. Enhanced antibody response after a booster dose could cross-neutralize 14 SARS-CoV-2 variants and SARS-CoV-1. Our results have added to the growing body of knowledge about the contribution of protein subunit vaccine platforms to pandemic control.

Distribution of Some Commercially Valuable Fishes (Pangasiidae, Polynemidae, Sciaenidae) in the Mekong Delta (Southern Vietnam) and Role of the Estuaries in Their Life Cycle

Distribution of Some Commercially Valuable Fishes (Pangasiidae, Polynemidae, Sciaenidae) in the Mekong Delta (Southern Vietnam) and Role of the Estuaries in Their Life Cycle