Nat Commun
December 2021
Identifying risk factors for impaired oral rotavirus vaccine (ORV) efficacy in low-income countries may lead to improvements in vaccine design and delivery. In this prospective cohort study, we measure maternal rotavirus antibodies, environmental enteric dysfunction (EED), and bacterial gut microbiota development among infants receiving two doses of Rotarix in India (n = 307), Malawi (n = 119), and the UK (n = 60), using standardised methods across cohorts. We observe ORV shedding and seroconversion rates to be significantly lower in Malawi and India than the UK.
View Article and Find Full Text PDFBackground: Neonatal rotavirus infections are predominantly caused by distinct genotypes restricted to this age-group and are mostly asymptomatic.
Method: Stool samples from neonates admitted for >48 h in neonatal intensive care units (NICUs) in Vellore (2014-2015) and Chennai (2015-2016) in southern India, and from neonates born at hospitals in Vellore but not admitted to NICUs (2015-2016) were tested for rotavirus by ELISA and genotyped by hemi-nested RT-PCR.
Results: Of 791 neonates, 150 and 336 were recruited from Vellore and Chennai NICUs, and 305 were born in five hospitals in Vellore.
Amputation of multiple fingers of both hands is a rare and serious injury. We report a case of a 41-year-old male patient who presented to Khoula Hospital, Muscat, Oman, in 2015 with the amputation of nine fingers due to a workplace injury. With two teams working in tandem, all the amputated fingers were re-attached.
View Article and Find Full Text PDFPurpose: To compare the pseudophakodonesis of in-the-bag intraocular lens (IOL) and a secondary fixated IOL by tracking the Purkinje image IV.
Setting: Dr. Agarwal's Eye Hospital and Eye Research Centre, Chennai, India.
Background: Soil-transmitted helminth (STH) infections are among the most prevalent neglected tropical diseases (NTD) worldwide. Since the publication of the WHO road map to combat NTD in 2012, there has been a renewed commitment to control STH. In this study, we analysed the geographical distribution and effect of community type on prevalence of hookworm, Trichuris and Ascaris in south Asia and south east Asia.
View Article and Find Full Text PDFVaccine
January 2018
Background: Strategies are needed to improve oral rotavirus vaccine (RV), which provides suboptimal protection in developing countries. Probiotics and zinc supplementation could improve RV immunogenicity by altering the intestinal microbiota and immune function.
Methods: Infants 5weeks old living in urban Vellore, India were enrolled in a randomized, double-blind, placebo-controlled trial with a 4-arm factorial design to assess the effects of daily zinc (5mg), probiotic (10Lactobacillus rhamnosus GG) or placebo on the immunogenicity of two doses of RV (Rotarix®, GlaxoSmithKline Biologicals) given at 6 and 10weeks of age.
Indian Pediatr
September 2017
This health utilization survey of 720 children (age <2 y) from 5 rural blocks in Vellore district identified that 80% used government facilities for preventive care while >80% used private facilities for curative services. Only 0.7% were home deliveries, 46% reported illness in the two-week recall, and 83% sought care for these illness.
View Article and Find Full Text PDFClin Infect Dis
February 2017
Background: Cryptosporidium is a leading cause of moderate to severe childhood diarrhea in resource-poor settings. Understanding the natural history of cryptosporidiosis and the correlates of protection are essential to develop effective and sustainable approaches to disease control and prevention.
Methods: Children (N = 497) were recruited at birth in semiurban slums in Vellore, India, and followed for 3 years with twice-weekly home visits.
Background: Presenting and demonstrating a surgical procedure in the current era is difficult without good intraoperative pictures and videos. A long, complex, multi-staged surgery is better illustrated by detailed intraoperative images at various stages. Although desirable, it may be difficult due to various reasons.
View Article and Find Full Text PDFBackground: Among the three poliovirus serotypes, the lowest responses after vaccination with trivalent oral polio vaccine (tOPV) are to serotype 3. Although improvements in routine immunisation and supplementary immunisation activities have greatly increased vaccine coverage, there are limited data on antibody prevalence in Indian infants.
Methods: Children aged 5-11months with a history of not having received inactivated polio vaccine were screened for serum antibodies to poliovirus serotype 3 (PV3) by a micro-neutralisation assay according to a modified World Health Organization (WHO) protocol.
Objective: To estimate direct medical costs of diarrheal hospitalization of children <5 years admitted in pediatric intensive care unit (PICU) or high dependency unit (HDU).
Methods: Analysis of medical records and hospital bills of 84 children during two time frames, 2005-08 and 2012-14.
Results: Direct medical costs in PICU increased from INR 17,941 to INR 50,663 per child for rotavirus diarrhea and INR 11,614 to INR 27,106 for non-rotavirus diarrhea, and in HDU from approximately INR 5,800 to INR 10,500 per child for all-cause diarrhea between the two time frames.
Objective: To study the effect of racecadotril on reduction in the duration of acute rotavirus and non-rotavirus diarrhea.
Design: Two randomized double-blind placebo-controlled trials.
Setting: Community-based trial in an urban area in Vellore, hospital-based trial at a secondary hospital in Vellore.
Introduction: Socioeconomic status (SES) scales measure poverty, wealth and economic inequality in a population to guide appropriate economic and public health policies. Measurement of poverty and comparison of material deprivation across nations is a challenge. This study compared four SES scales which have been used locally and internationally and evaluated them against childhood stunting, used as an indicator of chronic deprivation, in urban southern India.
View Article and Find Full Text PDFLancet Infect Dis
August 2016
Background: Oral poliovirus vaccine is less immunogenic and effective in low-income countries than in high-income countries, similarly to other oral vaccines. The high prevalence of intestinal pathogens and associated environmental enteropathy has been proposed to explain this problem. Because administration of an antibiotic has the potential to resolve environmental enteropathy and clear bacterial pathogens, we aimed to assess whether antibiotics would improve oral poliovirus vaccine immunogenicity.
View Article and Find Full Text PDFObjective: To estimate the burden and assess prenatal and postnatal determinants of illnesses experienced by children residing in a semiurban slum, during the first 1000 days of life.
Design: Community-based birth cohort
Setting: Southern India
Participants: Four hundred and ninety-seven children of 561 pregnant women recruited and followed for 2 years with surveillance and anthropometry.
Main Outcome Measure: Incidence rates of illness; rates of clinic visits and hospitalisations; factors associated with low birth weight, various illnesses and growth.