18 research outputs found
Molecular Epidemiology and Sequence Analysis of Rabies Virus Isolates from North and North East India
In the present study phylogenetic analysis of 30 rabies virus (RV) isolates collected from North and North East India between 2013 and 2016 was carried out. Analysis of two sets of sequence of non-coding G-L intergenic region, based upon a 132-nucleotide region of the cytoplasmic domain (CD) of the G gene (G-CD) and a 549-nucleotide (Psi-L) was done. The phylogenetic tree constructed using 549 nucleotide sequence of hyper variable region (Psi-L) showed the same topology as that obtained on the basis of 132 nucleotide sequence of G-CD region. Four different genetic clusters (GCs) distributed among three geographical regions were identified. Comparison of deduced amino acid (aa) sequences showed four amino acid changes - aa462G, aa465H/R and aa468K in G-CD region. The change observed at position aa465R indicated the spillover of Indian wild strain (mongoose) to domestic animals in Delhi region. The homology among the Indian RV isolates shared >97% nucleotide similarity irrespective of their geographical regions and hosts. The study revealed that the RV isolates are region specific, not host specific and all belonged to genotype 1
Visceral leishmaniasis cyclical trends in Bihar, India – implications for the elimination programme. [version 1; referees: 1 approved, 2 approved with reservations]
Background: Visceral leishmaniasis (VL) is a vector-borne disease of public health importance in India, with the highest burden of disease in the states of Bihar, Jharkhand, West Bengal and Uttar Pradesh. The disease is currently targeted for elimination (annual incidence to less than one per 10,000 population) using indoor residual spraying, active case detection and treatment. Historically the disease trend in India has been regarded as cyclical with case resurgence characteristically occurring every 15 years. Understanding this pattern is essential if the VL elimination gains are to be sustained. To better understand the cyclical trends, annual climatic indicators including rainfall, temperature and humidity over time were compared with annual VL case incidence data. Methods: Annual climate data (rainfall, average and maximum temperature and specific humidity) from 1956-2004 were used to identify potential factors influencing VL incidence. Months relevant to the VL life-cycle were identified and defined (Monsoon, Sand-fly Peak, Pre-Sand-fly Peak and Annual) for analysis. The Kruskall-Wallis test was used to determine significant difference between categorical rainfall and VL incidence, whilst univariate negative binomial regression models were used to determine predictors of disease incidence. Results: The negative binomial regression model showed statistically significant associations (p 0.05). Conclusion: The VL programme in Bihar has made significant progress in adopting best practices for improved treatment and vector control, with the aim to achieve VL elimination. However, open access granular programme data for indoor residual spray activities and case detection is required to fully understand the role of climate in disease transmission and potential resurgence
Scrub typhus meningitis from Urban Delhi – An atypical presentation
Scrub typhus, a mite-transmitted zoonosis is caused byOrientiatsutsugamushi. It is transmitted by the larval mites (chiggers) of theLeptotrombidiumdeliensegroup.Clinical manifestations vary from acute febrile illness to multiple organ dysfunction syndrome. Neurological involvement is also seen.3,4 We report a case of scrub typhus from North Delhi which presented as acute febrile illness with meningitis, without eschar
Improving malaria treatment and prevention in India by aiding district managers to manage their programmes with local information: a trial assessing the impact of Lot Quality Assurance Sampling on programme outcomes
OBJECTIVES
This paper reports the first trial of Lot Quality Assurance Sampling (LQAS) assessing associations between access to LQAS data and subsequent improvements in district programming. This trial concerns India's approach to addressing an increase in malaria-attributable deaths by training community health workers to diagnose, treat and prevent malaria, while using LQAS to monitor sub-district performance and make programme improvements.
METHODS
The Ministry of Health introduced LQAS into four matched high malaria burden districts (Annual Parasite Incidence >5) (N > 5 million). In each sub-district, we sampled four populations in three 6-monthly surveys: households, children <5 years, people with fever in the last 2 weeks and community health workers. In three districts, trained local staff collected, analysed and used data for programme management; in one control district, non-local staff collected data and did not disseminate results. For eight indicators, we calculated the change in proportion from survey one to three and used a Difference-in-Differences test to compare the relative change between intervention and control districts.
RESULTS
Coverage increased from survey one to three for 24 of 32 comparisons. Difference-in-Differences tests revealed that intervention districts exhibited significantly greater change in four of six vertical strategies (insecticide treated bed-nets and indoor residual spraying), one of six treatment-seeking behaviours and four of 12 health worker capacity indicators. The control district displayed greater improvement than two intervention districts for one health worker capacity indicator. One district with poor management did not improve.
CONCLUSIONS
In this study, LQAS results appeared to support district managers to increase coverage in underperforming areas, especially for vertical strategies in the presence of diligent managers
Evaluation of National Injury Surveillance Centre, India, 2015-16
Background: Globally, injuries accounts for 9% of all deaths, but India account for 11%. Due to limited data on injury characteristics, National Injury Surveillance Centre (NISC) was established in 2014 in New Delhi. Aim & Objectives: To evaluate attributes of NISC and make evidence-based recommendations. Methods and Material: We conducted cross-sectional study and used US Centers for Disease Control and Prevention guidelines to assess simplicity, flexibility, acceptability, stability, timeliness, representativeness, usefulness, and data quality. We reviewed 2015 records and interviewed 20 key-informants. We used Epi-Info7 for analysis. Results: NISC captured 4043 injuries in 2015 from one hospital. Among five data entry operators, four reported lengthy format, but all reported it easy. Among ten relevant key-informants, all reported data-management software easy. System demonstrated flexibility in three variables. All 20 staff reported willingness to participate, and 90% felt quarterly reporting acceptable. Regarding stability, data was collected for 361/365 days. Quarterly reports were available but only submitted annually. Regarding usefulness, all WHO-recommended variables included. Regarding data quality, 17% data-fields were missing. Conclusion: NISC is simple, flexible, stable, acceptable and potentially useful based on data captured. Timeliness based on annual reporting is high, can be improved to quarterly. We recommend training to improve data quality and integration of additional hospitals to improve representativeness
Visceral leishmaniasis cyclical trends in Bihar, India – implications for the elimination programme.
DATASE