Browsing by Author "Das, V."

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    A deep dive into chickenpox epidemiology and outbreaks: A retrospective study in a tribal-dominated district of Western India
    (Scientific Scholar, 2024-04) Khan, V; Sanghai, AA; Zala, D; Babariya, MJ; Das, V.
    Objectives: This retrospective observational study conducted in the district of Dadra and Nagar Haveli, Western India, over the past 9 years aimed to comprehensively investigate the epidemiology of chickenpox. The objectives were to analyze demographic and clinical characteristics, examine temporal trends, identify outbreak locations, assess outbreak intensity and duration, determine laboratory-confirmed cases, and provide insights for public health interventions. Materials and Methods: The study employed a retrospective approach, gathering data on chickenpox cases in the region. Demographic information, clinical profiles, and outbreak details were analyzed. Temporal variations and seasonal trends were assessed. Laboratory confirmation was achieved through serology and molecular methods. Locations of outbreaks were identified, and their characteristics were evaluated. Results: The study revealed that the 6–10 age groups were most vulnerable, with mild-to-moderate symptoms predominantly observed. Significant variations in cases occurred year round, with peaks between November and February. Out of 25 recorded outbreaks and three early warning signals, Aganwadis, play schools, and schools were common outbreak locations. Most outbreaks were low intensity, and laboratory confirmation identified Clade-1 Varicella-Zoster virus as the causative agent. Conclusion: These findings provide essential insights for public health officials. Identifying the vulnerable age group and high-risk locations allows for targeted vaccination campaigns. Moreover, the study underscores the need for continuous monitoring and surveillance to detect outbreaks early and mitigate their spread effectively, emphasizing the importance of proactive prevention and control measures for chickenpox in the region.
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    Phytochemical, Antioxidant, Antibacterial and Antifungal Investigations of Thuja orientalis Cone
    (Sciencedomain International, 2022-07) Das, V.; Rai, V.; Jaishee, N.; Ghosh, S.
    Background of the Study: Thuja orientalis L. is an indigenous medicinal plant belonging to family Cupressaceae found in Darjeeling Himalayan region, Dooars and Tarai region of India. The plant cone has been used traditionally as medicine to treat various diseases, like bronchitis, bacterial skin infection, osteoarthritis, trigeminal neuralgia. Aim: The aim of the present study is to evaluate the plant cone for phytochemical constinuents, and in vitro antioxidant, and antimicrobial properties. Place and Duration of Study: All the experiments were done in the Department of Biotechnology, University of North Bengal, Darjeeling, West Bengal, 734013, India. Methodology: Methanolic extract of T. orientalis cone was analyzed for phytochemicals by various biochemical methods. Antioxidant properties were analyzed by in vitro assays of DPPH, ABTS, NO and H2O2 scavenging. Antibacterial property was analyzed by agar well diffusion method and antifungal assay was monitored by radial growth bioassay. Results: Methanolic extract of T. orientalis cone contained flavonoid, phenol, saponin, tannin, terpenoid and alkaloid. The extract showed significant in-vitro antioxidant and antimicrobial activity. Conclusions: The study revealed that T. orientalis cone has potential as source of antioxidant, antibacterial and antifungal agents. Our further study is directed towards the isolation, and characterization of active compound from methanolic extract and evaluation of its potentiality against high blood sugar.