4 research outputs found
Comparing static and outreach immunization strategies and associated factors in Uganda, Nov-Dec 2016
Introduction: the government of Uganda aims at reducing childhood morbidity through provision of immunization services. We compared the proportion of children 12-33 months reached using either static or outreach immunization strategies and factors affecting utilization of routine vaccination services in order to inform policy updates.
Methods: we adopted the 2015 vaccination coverage cluster survey technique. The sample selection was based on a stratified three-stage sample design. Using the Fleiss formula, a sample of 50 enumeration areas was sufficient to generate immunization coverages at each region. A total of 200 enumeration areas were selected for the survey. Thirty households were selected per enumeration area. Epi-Info software was used to calculate weighted coverage estimates.
Results: among the 2231 vaccinated children aged 12-23 months who participated in the survey, 68.1% received immunization services from a health unit and 10.6% from outreaches. The factors that affected utilization of routine vaccination services were; accessibility, where 78.2% resided within 5km from a health facility. 29.7% missed vaccination due to lack of vaccines at the health facility. Other reasons were lack of supplies at 39.2% and because the caretaker had other things to do, 26.4%. The survey showed 1.8% (40/2271) respondents had not vaccinated their children. Among these, 70% said they had not vaccinated their child because they were busy doing other things and 27.5% had not done so because of lack of motivation.
Conclusion: almost 7 in 10 children aged 12-23 months access vaccination at health facilities. There is evidence of parental apathy as well as misconceptions about vaccination
Estimating the costs of responding to a measles outbreak: Buvuma Islands, Lake Victoria, Uganda, February-May 2017
Introduction: Despite the strong prevention efforts by the Uganda Ministry of Health (MOH), measles outbreaks continue to occur. The MOH responded to a measles outbreak in the hard to reach areas of Buvuma Islands, identifying 54 case-patients, 4 of whom developed complications and were hospitalized. We defined a measles case as; Any suspected case with a positive measles IgM antibodies or detection of measles viral RNA by PCR in a suspected case. We estimated the provider cost of responding to this outbreak, cost of prevention, and the cost the government would have saved with effective prevention. Methods: We interviewed health facility in charges, record clerks, and measles cases to collect information on patient management and days of illness. Using an itemized form, we systematically collected data on quantities and unit costs of all the resource inputs for both direct and indirect costs at national, district, and facility levels. Medical costs referred to hospital and clinic costs for medications, supplies, utilities, transport, and personnel; non-medical costs included those associated with person-hours spent on the outbreak investigation and control effort. Results: The overall cost of investigating and controlling this outbreak was 5,526.30) of medical costs, 117.80 (16,259.5/138 (number of children 6months-5years. This is the target for measles intensified immunization following an outbreak). Conclusion: The total cost incurred in this outbreak is four fold the amount needed to vaccinate all children in Buvuma which would have averted the outbreak. We recommended strengthening vaccination services in the entire country, especially hard-to-reach areas, to enable the government forego the extra cost and morbidity associated with outbreak control
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Genomic analysis, immunomodulation and deep phenotyping of patients with nodding syndrome.
The aetiology of nodding syndrome remains unclear, and comprehensive genotyping and phenotyping data from patients remain sparse. Our objectives were to characterize the phenotype of patients with nodding syndrome, investigate potential contributors to disease aetiology, and evaluate response to immunotherapy. This cohort study investigated members of a single-family unit from Lamwo District, Uganda. The participants for this study were selected by the Ugandan Ministry of Health as representative for nodding syndrome and with a conducive family structure for genomic analyses. Of the eight family members who participated in the study at the National Institutes of Health (NIH) Clinical Center, three had nodding syndrome. The three affected patients were extensively evaluated with metagenomic sequencing for infectious pathogens, exome sequencing, spinal fluid immune analyses, neurometabolic and toxicology testing, continuous electroencephalography and neuroimaging. Five unaffected family members underwent a subset of testing for comparison. A distinctive interictal pattern of sleep-activated bursts of generalized and multifocal epileptiform discharges and slowing was observed in two patients. Brain imaging showed two patients had mild generalized cerebral atrophy, and both patients and unaffected family members had excessive metal deposition in the basal ganglia. Trace metal biochemical evaluation was normal. CSF was non-inflammatory and one patient had CSF-restricted oligoclonal bands. Onchocerca volvulus-specific antibodies were present in all patients and skin snips were negative for active onchocerciasis. Metagenomic sequencing of serum and CSF revealed hepatitis B virus in the serum of one patient. Vitamin B6 metabolites were borderline low in all family members and CSF pyridoxine metabolites were normal. Mitochondrial DNA testing was normal. Exome sequencing did not identify potentially causal candidate gene variants. Nodding syndrome is characterized by a distinctive pattern of sleep-activated epileptiform activity. The associated growth stunting may be due to hypothalamic dysfunction. Extensive testing years after disease onset did not clarify a causal aetiology. A trial of immunomodulation (plasmapheresis in two patients and intravenous immunoglobulin in one patient) was given without short-term effect, but longer-term follow-up was not possible to fully assess any benefit of this intervention