Publications by authors named "Vishal Diwan"

Background: Norovirus is a leading cause of acute gastroenteritis globally, with genotypic variation influencing epidemiology and disease outcomes. Understanding the distribution and prevalence of different Norovirus genotypes is crucial for public health surveillance and intervention strategies.

Methods: We conducted a systematic review of Norovirus genotypes in Asia from 2000 to 2023.

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Background: Pregnant women and children are vulnerable to air pollution-related adverse health effects, especially those residing in low-resource and high-exposure settings like India. However, evidence regarding the effects of early-life exposure to air particulate matter (PM) on childhood growth/developmental trajectory is contradictory; evidence about specific constituents of PM, like heavy metals, is limited. Similarly, there are few Indian cohorts investigating PM exposure and the incidence of acute respiratory infection during infancy.

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The presence of microplastics in various environmental matrices is a reality. Besides, sewage treatment plants (STPs) play a crucial role in further adding to the microplastic pool of the environment, especially in water and soil resources. As conventional STPs are not primarily meant to remove microplastics, treated effluent and sludge contain a significant amount of microplastic items which are ultimately discharged into the surface water/soil.

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Increase in the antibiotic's usage and mis-management in antibiotics' disposal has led to the occurrence of antibiotic residues in the surface water bodies. These residues may pose considerable risks to the human as well as aquatic organisms owing to the enhancement in antimicrobial resistance among microbes. Hence, precautionary measures are need of the hour to curtail the occurrence of antibiotic compounds in water.

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Older adults are vulnerable to unsafe medication practices. This cross-sectional study estimated the prevalence and factors of polypharmacy and self-medication among 600 older adults from six Indian cities. The updated Screening Tool of Older Persons' Prescriptions and Screening Tool to Alert to Right Treatment criteria (version 3) were used.

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Article Synopsis
  • - The protocol focuses on detecting pathogenic enteric RNA viruses, such as norovirus and hepatitis A, in wastewater using droplet digital PCR (ddPCR) to improve public health monitoring in urban India.
  • - It involves regular sample collection from nine wastewater treatment plants over two years, employing advanced techniques like ddPCR and next-generation sequencing for precise viral identification and quantification.
  • - The research aims to enhance understanding of virus diversity and mutation, which will inform public health strategies and improve surveillance in areas with sewage infrastructure.
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Objective: Informal healthcare providers (IHCPs) play a big role in health systems in low-and middle-income countries (LMICs) and are often the first point of contact for healthcare in rural and underserved areas where formal healthcare infrastructure is insufficient or absent. This study was performed to systematically review the literature on interventions targeting IHCPs in improving the delivery of healthcare services in LMICs.

Methods: PubMed, Embase, and Cochrane CENTRAL databases were searched for studies that assessed any type of intervention among IHCPs to improve the delivery of healthcare services in any LMIC.

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Introduction: Rotavirus-induced viral gastroenteritis outbreaks result in over two million hospitalizations globally yearly. Wastewater-based epidemiology (WBE) has emerged as a crucial tool for detecting and monitoring viral outbreaks. The adoption of WBE has been instrumental in the early detection and surveillance of such viral outbreaks, providing a non-invasive method to assess public health.

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Article Synopsis
  • India launched its COVID-19 vaccination drive on January 16, 2021, focusing on adults over 18, leading to over 1 billion first doses and nearly 950 million second doses, but only 217 million precaution doses were administered, indicating a significant gap.
  • The Ministry of Health & Family Welfare conducted an exploratory study across six states to identify the facilitators and barriers affecting the uptake of precaution doses among adults, utilizing in-depth interviews and focus group discussions among various community members and health officials.
  • Preliminary results suggested that an increase in COVID-19 cases motivated some community members to pursue precaution doses, highlighting the need for improved communication and outreach in future immunization campaigns.
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Waste segregation at source, particularly at the household level, is an integral component of sustainable solid waste management, which is a critical public health issue. Although multiple interventions have been published, often with contradictory findings, few authors have conducted a comprehensive systematic synthesis of the published literature. Therefore, we undertook a systematic review to synthesize all published interventions conducted in any country in the world which targeted household-level waste segregation with or without additional focus on recycling or composting.

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Introduction: A neurodevelopmental disorder, autism is typically identified with three primary behavioral consequences, such as social impairment, communication problems, and limited or stereotypical behavior. Because of its co-morbidity and lack of therapeutic options, autism is a global economic burden. A short chain of fatty acid, propionic acid is formed biologically by the gut microbiome.

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Introduction: Crowdsourcing is an emerging technique to engage or access a wider set of experts and multiple stakeholders through online platforms, which might effectively be employed in waste management. Therefore, we assessed the feasibility of the crowdsourcing method to provide an alternative approach that can improve household waste segregation using an "online-slogan-contest".

Methods: The contest was promoted via targeted emails to various governmental and non-governmental organizations and through social media platforms for around 4 weeks (25 days).

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Waste segregation is an essential function in improving waste management. Waste segregation not only facilitates recycling and reduces waste going to landfills, rather it can benefit our environment and human in various ways. A pick analysis of waste composition is used to characterize the household waste stream and thus can analyze the segregation rate among the residents.

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Rationale & Objective: Little is known about hospital admissions in nondialysis patients with chronic kidney disease (CKD) before death or starting kidney replacement therapy (KRT).

Study Design: Retrospective observational cohort study.

Setting & Participants: Hospitalizations among 7,201 patients with CKD from 10 public renal clinics in Queensland (QLD), enrolled in the CKD.

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Introduction: Individual and community characteristics predictive of knowledge, perception, and attitude on COVID-19, specifically on gender, have not been adequately explored.

Objective: To examine the gender differences in COVID-19 knowledge, self-risk perception and public stigma among the general community and to understand other socio-demographic factors which were predictive of them.

Method: A nationally representative cross-sectional multi-centric survey was conducted among adult individuals(≥18 yrs) from the community member (N = 1978) from six states and one union territory of India between August 2020 to February 2021.

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Aim: Anaemia among patients with chronic kidney disease (CKD) leads to poor overall outcomes. This study explores anaemia and its impact on nondialysis CKD (NDD-CKD) patients.

Methods: 2,303 adults with CKD from two CKD.

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Aim: Stigma is a well-documented impediment to health-seeking behaviors and treatment adherence. An explicit societal understanding is essential to halt the stigmatization. Studies documented COVID-19-associated stigma among healthcare personnel.

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Background: The health implications surrounding a mass gathering pose significant challenges to public health officials. The use of syndromic surveillance provides an ideal method for achieving the public health goals and objectives at such events. In the absence of published reports of systematic documentation of public health preparedness in mass gatherings in the local context, we describe the public health preparedness and demonstrate the operational feasibility of a tablet-based participatory syndromic surveillance among pilgrims during the annual ritual circumambulation- .

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Widespread use of antibiotics for treating human and animal ailments has increased their discharge in the environment through excreta. Moreover, unscientific disposal of unused antibiotics has further increased their presence in the environmental matrices. Thus, occurrence of used and/or discarded antibiotics in water resources is becoming a growing concern across the globe.

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Background: Antimicrobial resistance (AMR) is a multidimensional phenomenon. The environment acts as a mixing pot of drug-resistant bacteria from many sources such as pharmaceutical, biomedical, veterinary, and agricultural sectors. In this study, we analysed the existing AMR-related policies/guidelines/legislations in India in the above domains and how the current practices are being guided by them.

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Background: The global expansion of antibiotic-resistant bacteria is a serious concern and is increasing worldwide in both pathogenic and commensal bacteria. The study determined the correlation between individual child-level antibiotic consumption and antibiotic resistance among the commensal in a cohort of 125 children in rural Ujjain, India.

Methods: During a two-year period between August 2014 and September 2016, stool samples were collected at seven-time points from a cohort of 125 children; aged 1-3.

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Objective: To assess factors associated with COVID-19 stigmatizing attitudes in the community and stigma experiences of COVID-19 recovered individuals during first wave of COVID-19 pandemic in India.

Methods: A cross-sectional study was conducted in 18 districts located in 7 States in India during September 2020 to January 2021 among adults > 18 years of age selected through systematic random sampling. Data on socio demographic and COVID-19 knowledge were collected from 303 COVID-19 recovered and 1,976 non-COVID-19 infected individuals from community using a survey questionnaire.

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Objective: Present study was designed to investigate behavioral and biochemical role of nimodipine in prenatal valproic acid (Pre-VPA) induced autism in rats.

Methods: Valproic acid was utilized to induce autistic phenotypes in Wistar rats. The rats were assessed for social behavior.

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Unacceptable housing conditions prevalent in Indian urban slums adversely affect the health of residents. The Government of India initiated the Basic Services to the Urban Poor (BSUP) as a sub-mission under the Jawaharlal Nehru National Urban Renewal Mission (JNNURM), to provide basic services to the urban poor. As per the available scientific literature, the health effects of such improved housing schemes for the poor have not been studied so far in India, especially in under-five children (0-5 years old) who spend most of their time indoors.

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