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1.
Emerg Infect Dis ; 30(4): 775-778, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38526214

RESUMEN

Given its enhanced genetic stability, novel oral poliovirus vaccine type 2 was deployed for type 2 poliovirus outbreak responses under World Health Organization Emergency Use Listing. We evaluated the safety profile of this vaccine. No safety signals were identified using a multipronged approach of passive and active surveillance.


Asunto(s)
Poliovirus , Poliovirus/genética , Vacuna Antipolio Oral/efectos adversos , Uganda/epidemiología , Vacunación/efectos adversos , Inmunización
2.
Arch Virol ; 168(5): 140, 2023 Apr 15.
Artículo en Inglés | MEDLINE | ID: mdl-37059887

RESUMEN

The success of the global polio eradication initiative is threatened by the genetic instability of the oral polio vaccine, which can result in the emergence of pathogenic vaccine-derived polioviruses following prolonged replication in the guts of individuals with primary immune deficiencies or in communities with low vaccination coverage. Through environmental surveillance, circulating vaccine-derived poliovirus type 2 was detected in Uganda in the absence of detection by acute flaccid paralysis (AFP) surveillance. This underscores the sensitivity of environmental surveillance and emphasizes its usefulness in supplementing AFP surveillance for poliovirus infections in the race towards global polio eradication.


Asunto(s)
Poliomielitis , Vacuna Antipolio Oral , Poliovirus , Humanos , alfa-Fetoproteínas , Monitoreo del Ambiente , Parálisis/epidemiología , Parálisis/etiología , Poliomielitis/epidemiología , Poliomielitis/prevención & control , Poliovirus/genética , Vacuna Antipolio Oral/efectos adversos , Vigilancia de la Población , Uganda/epidemiología
3.
BMC Infect Dis ; 23(1): 487, 2023 Jul 21.
Artículo en Inglés | MEDLINE | ID: mdl-37479986

RESUMEN

BACKGROUND: Between March, 2020 and December, 2021 due to cholera and coronavirus disease 2019 (COVID-19) pandemics, there were 1,534 cholera cases with 14 deaths and 136,065 COVID-19 cases with 3,285 deaths reported respectively in Uganda. This study investigated mass vaccination campaigns for the prevention of the two pandemics namely: oral cholera vaccine (OCV) and COVID-19 vaccine coverage; adverse events following immunization (AEFI); barriers and enablers for the vaccine uptake and assessed water, sanitation and hygiene (WASH) conditions in the six cholera and COVID-19 hotspot districts of Uganda. METHODS: A household survey was conducted between January and February, 2022 in the six cholera hotspot districts of Uganda which had recently conducted OCV mass vaccination campaigns and had ongoing COVID-19 mass vaccination campaigns. The survey randomly enrolled 900 households with 4,315 persons of whom 2,085 were above 18 years. Data were collected using a data entry application designed in KoBoToolbox and analysed using STATA version 14. Frequencies, percentages, odds ratios, means, confidence intervals and maps were generated and interpreted. RESULTS: The OCV coverage for dose one and two were 85% (95% CI: 84.2-86.4) and 67% (95% CI: 65.6-68.4) respectively. Among the 4,315 OCV recipients, 2% reported mild AEFI, 0.16% reported moderate AEFI and none reported severe AEFI. The COVID-19 vaccination coverage for dose one and two were 69.8% (95% CI: 67.8-71.8) and 18.8% (95% CI: 17.1-20.5) respectively. Approximately, 23% (478/2,085) of COVID-19 vaccine recipient reported AEFI; most 94% were mild, 0.6% were moderate and 2 cases were severe. The commonest reason for missing COVID-19 vaccine was fear of the side effects. For most districts (5/6), sanitation (latrine/toilet) coverage were low at 7.4%-37.4%. CONCLUSION: There is high OCV coverage but low COVID-19 vaccine and sanitation coverage with high number of moderate cases of AEFI recorded due to COVID-19 vaccines. The low COVID-19 vaccine coverage could indicate vaccine hesitancy for COVID-19 vaccines. Furthermore, incorporation of WASH conditions assessment in the OCV coverage surveys is recommended for similar settings to generate data for better planning. However, more studies are required on COVID-19 vaccine hesitancy.


Asunto(s)
COVID-19 , Vacunas contra el Cólera , Cólera , Humanos , Vacunas contra la COVID-19/efectos adversos , Pandemias , Cólera/epidemiología , Cólera/prevención & control , Uganda/epidemiología , Saneamiento , COVID-19/epidemiología , COVID-19/prevención & control , Inmunización , Vacunas contra el Cólera/efectos adversos , Higiene
4.
BMC Public Health ; 22(1): 1694, 2022 09 07.
Artículo en Inglés | MEDLINE | ID: mdl-36071410

RESUMEN

BACKGROUND: Polio is disease caused by poliovirus which can in turn cause irreversible paralytic disease, presenting as Acute Flaccid Paralysis (AFP). A sensitive AFP surveillance system, in which all reported AFP cases are evaluated, first to determine if they are true AFP cases or not, is key for tracking polio eradication. True AFP cases are then later categorized as polio AFP or non-polio AFP (NPAFP) cases. Sensitivity is defined by meeting an annual NPAFP rate/100,000 population < 15 years of ≥ 4/100,000, and an annual stool adequacy (SA) rate of ≥ 80%. We describe Uganda's AFP surveillance performance between 2015-2020, based on the WHO-recommended indicators, including; NPAFP and stool adequacy rate. METHODS: We performed a descriptive analysis of national AFP surveillance data, 2015-2020 obtained from ministry of health. We evaluated proportion of reported AFP cases that were true AFP, and changes in NPAFP and stool adequacy (SA) rate over the study period. We evaluated the trends in achieving the targeted NPAFP and SA rates from 2015-2020. We used QGIS to illustrate patterns in NPAFP and SA rates across districts and subregions. RESULTS: Among 3,605 AFP cases reported and investigated countrywide from 2015-2020, 3,475 (96%) were true AFP cases. All the true AFP cases were non-polio related. District reporting was near-complete (97-100% each year). Overall, the mean NPAFP rate declined from 3.1/100,000 in 2015 to 2.1/100,000 in 2020. Less than 40% of districts met the NPAFP target rate in all years. The proportion of districts achieving the NPAFP target rate of ≥ 4/100,000 significantly declined from 35% in 2015 to 20% in 2020. The mean annual SA rate nationally was 88% from 2015-2020. Only 66% of districts achieved the SA target rate of ≥ 80% in the study period. The proportion of districts with SA rate ≥ 80% significantly increased from 68 to 80% between 2015 and 2020. CONCLUSION: Most districts reported AFP cases. However, there was a decline in the NPAFP rate from 2015-2020 and few districts achieved the target rate. The suboptimal AFP surveillance system performance leaves the country at risk of missing ongoing poliovirus transmission. We recommend health worker training on active AFP searches, intensified supportive supervision, increase the number of environmental surveillance sentinel sites to boost AFP surveillance in the country, and periodic review meetings with districts to assess AFP surveillance performance.


Asunto(s)
Poliomielitis , Poliovirus , Humanos , Enfermedades Virales del Sistema Nervioso Central , Mielitis , Enfermedades Neuromusculares , Poliomielitis/epidemiología , Poliomielitis/prevención & control , Vigilancia de la Población , Uganda/epidemiología
5.
J Med Virol ; 92(3): 279-287, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-31598987

RESUMEN

Rubella virus causes a mild disease; however, infection during the first trimester of pregnancy may lead to congenital rubella syndrome (CRS) in over 80% of affected pregnancies. Vaccination is recommended and has been shown to effectively reduce CRS incidence. Uganda plans to introduce routine rubella vaccination in 2019. The World Health Organization recommends assessing the disease burden and obtaining the baseline molecular virological data before vaccine introduction. Sera collected during case-based measles surveillance from January 2005 to July 2018 were tested for rubella immunoglobulin M (IgM) antibodies. Sera from confirmed rubella outbreaks from January 2012 to August 2017 were screened using real-time reverse-transcription polymerase chain reaction (RT-PCR); for positive samples, a region within the E1 glycoprotein coding region was amplified and sequenced. Of the 23 196 suspected measles cases serologically tested in parallel for measles and rubella, 5334 (23%) were rubella IgM-positive of which 2710 (50.8%) cases were females with 2609 (96.3%) below 15 years of age. Rubella IgM-positive cases were distributed throughout the country and the highest number was detected in April, August, and November. Eighteen (18%) of the 100 sera screened were real-time RT-PCR-positive of which eight (44.4%) were successfully sequenced and genotypes 1G and 2B were identified. This study reports on the seroprevalence and molecular epidemiology of rubella. Increased knowledge of former and current rubella viruses circulating in Uganda will enhance efforts to monitor the impact of vaccination as Uganda moves toward control and elimination of rubella and CRS.


Asunto(s)
Anticuerpos Antivirales/sangre , Virus de la Rubéola/clasificación , Rubéola (Sarampión Alemán)/epidemiología , Rubéola (Sarampión Alemán)/virología , Adolescente , Niño , Preescolar , Costo de Enfermedad , Brotes de Enfermedades/estadística & datos numéricos , Femenino , Genotipo , Humanos , Inmunoglobulina M/sangre , Incidencia , Masculino , Sarampión/epidemiología , Filogenia , Embarazo , Vacuna contra la Rubéola/inmunología , Uganda/epidemiología
6.
Virol J ; 15(1): 77, 2018 04 27.
Artículo en Inglés | MEDLINE | ID: mdl-29699577

RESUMEN

BACKGROUND: The Oral Polio Vaccine (OPV or Sabin) is genetically unstable and may mutate to form vaccine-derived polioviruses (VDPVs). METHODS: In 2014, two VDPVs type 2 were identified during routine surveillance of acute flaccid paralysis (AFP) cases. Consequently, a retrospective VDPV survey was conducted to ensure that there was no circulating VDPV in the country. All Sabin poliovirus isolates identified in Uganda 6 months before and 6 months after were re-screened; Sabin 1 and 3 polioviruses were re-screened for Sabin 2 and Sabin 2 polioviruses were re-screened for VDPVs type 2. The Poliovirus rRT-PCR ITD/VDPV 4.0 assay and sequencing were used respectively. RESULTS: The first two VDPVs type2 were identified in Eastern Uganda and the third was identified during the survey from South-western Uganda. These regions had low OPV coverage and poor AFP surveillance indicators. CONCLUSION: The retrospective VDPV survey was a useful strategy to screen for VDPVs more exhaustively. Supplementary surveillance methods need to be encouraged.


Asunto(s)
Poliomielitis/virología , Poliovirus/clasificación , Poliovirus/aislamiento & purificación , Sustitución de Aminoácidos , Proteínas de la Cápside/genética , Monitoreo Epidemiológico , Femenino , Humanos , Lactante , Masculino , Mutación , Filogenia , Poliomielitis/prevención & control , Poliovirus/genética , Vacuna Antipolio Oral/efectos adversos , Estudios Retrospectivos , Uganda , Vacunas Atenuadas/administración & dosificación , Vacunas Atenuadas/efectos adversos
7.
Emerg Infect Dis ; 23(13)2017 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-29155675

RESUMEN

In Uganda, vaccine dose administration data are often not available or are of insufficient quality to optimally plan, monitor, and evaluate program performance. A collaboration of partners aimed to address these key issues by deploying data improvement teams (DITs) to improve data collection, management, analysis, and use in district health offices and health facilities. During November 2014-September 2016, DITs visited all districts and 89% of health facilities in Uganda. DITs identified gaps in awareness and processes, assessed accuracy of data, and provided on-the-job training to strengthen systems and improve healthcare workers' knowledge and skills in data quality. Inaccurate data were observed primarily at the health facility level. Improvements in data management and collection practices were observed, although routine follow-up and accountability will be needed to sustain change. The DIT strategy offers a useful approach to enhancing the quality of health data.

8.
J Med Virol ; 87(12): 2163-7, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-26058454

RESUMEN

A retrospective study to identify VAPP cases from the entire Uganda was conducted between January 2003 and December 2011. Eleven of the 106 AFP cases were VAPPs. The VAPP rate ranged from 0 to 3.39 cases per 1,000,000 birth cohorts and the peak was in 2009 when there was scaling up of OPV immunization activities following an importation of wild poliovirus in the country. All the subsequent polio suspect cases since then have been vaccine-associated polio cases. Our data support the strategy to withdraw OPV and introduce IPV progressively in order to mitigate against the paralysis arising from Sabin polioviruses.


Asunto(s)
Poliomielitis/epidemiología , Poliomielitis/etiología , Vacuna Antipolio Oral/administración & dosificación , Vacuna Antipolio Oral/efectos adversos , Poliovirus/aislamiento & purificación , Adolescente , Niño , Preescolar , Humanos , Lactante , Poliomielitis/patología , Prevalencia , Estudios Retrospectivos , Uganda/epidemiología
9.
J Infect ; 88(5): 106148, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38588959

RESUMEN

OBJECTIVES: In this study, we investigated the causes of measles-like illnesses (MLI) in the Uganda national surveillance program in order to inform diagnostic assay selection and vaccination strategies. METHODS: We used metagenomic next-generation sequencing (M-NGS) on the Illumina platform to identify viruses associated with MLI (defined as fever and rash in the presence of either cough, coryza or conjunctivitis) in patient samples that had tested IgM negative for measles between 2010 and 2019. RESULTS: Viral genomes were identified in 87/271 (32%) of samples, of which 44/271 (16%) contained 12 known viral pathogens. Expected viruses included rubella, human parvovirus B19, Epstein Barr virus, human herpesvirus 6B, human cytomegalovirus, varicella zoster virus and measles virus (detected within the seronegative window-period of infection) and the blood-borne hepatitis B virus. We also detected Saffold virus, human parvovirus type 4, the human adenovirus C2 and vaccine-associated poliovirus type 1. CONCLUSIONS: The study highlights the presence of undiagnosed viruses causing MLI in Uganda, including vaccine-preventable illnesses. NGS can be used to monitor common viral infections at a population level, especially in regions where such infections are prevalent, including low and middle income countries to guide vaccination policy and optimize diagnostic assays.


Asunto(s)
Secuenciación de Nucleótidos de Alto Rendimiento , Sarampión , Humanos , Uganda/epidemiología , Preescolar , Sarampión/epidemiología , Sarampión/virología , Lactante , Niño , Masculino , Femenino , Adolescente , Virus/aislamiento & purificación , Virus/genética , Virus/clasificación , Genoma Viral , Adulto , Adulto Joven , Virosis/epidemiología , Virosis/virología , Metagenómica , Virus del Sarampión/genética , Virus del Sarampión/aislamiento & purificación , Virus del Sarampión/clasificación
10.
BMC Res Notes ; 16(1): 218, 2023 Sep 14.
Artículo en Inglés | MEDLINE | ID: mdl-37710238

RESUMEN

There are 13 globally recognized rubella virus genotypes of which only 2 (1E and 2B) have been detected recently. The largest percentage of all reported rubella virus sequences come from China and Japan with Africa reporting limited data. In a bid to address the lack of rubella genotype data in Uganda and the World Health Organization Africa region, we sought to characterize rubella viruses retrospectively using sera collected from suspected measles patients that turned out rubella IgM positive.Seven sequences belonging to genotype 2B sub-lineage 2B-L2c were obtained. These sequences clustered with other genotype 2B sequences previously reported from Uganda. None of the other genotypes (1E and 1G) reported from Uganda in the earlier years were detected. In addition, none of the sequences were obtained after the introduction of the measles-rubella containing vaccine. The above highlight the need for continuous rubella virological surveillance to confirm interruption of endemic rubella genotype circulation.


Asunto(s)
Sarampión , Rubéola (Sarampión Alemán) , Humanos , Virus de la Rubéola/genética , Uganda/epidemiología , Estudios Retrospectivos , Rubéola (Sarampión Alemán)/epidemiología , Genotipo , Sarampión/epidemiología , Vacuna Antisarampión
11.
Int J Epidemiol ; 52(4): 1150-1162, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-36762894

RESUMEN

BACKGROUND: Despite providing tetanus-toxoid-containing vaccine (TTCV) to infants and reproductive-age women, Uganda reports one of the highest incidences of non-neonatal tetanus (non-NT). Prompted by unusual epidemiologic trends among reported non-NT cases, we conducted a retrospective record review to see whether these data reflected true disease burden. METHODS: We analysed nationally reported non-NT cases during 2012-2017. We visited 26 facilities (14 hospitals, 12 health centres) reporting high numbers of non-NT cases (n = 20) or zero cases (n = 6). We identified non-NT cases in facility registers during 1 January 2016-30 June 2017; the identified case records were abstracted. RESULTS: During 2012-2017, a total of 24 518 non-NT cases were reported and 74% were ≥5 years old. The average annual incidence was 3.43 per 100 000 population based on inpatient admissions. Among 482 non-NT inpatient cases reported during 1 January 2016-30 June 2017 from hospitals visited, 342 (71%) were identified in facility registers, despite missing register data (21%). Males comprised 283 (83%) of identified cases and 60% were ≥15 years old. Of 145 cases with detailed records, 134 (92%) were clinically confirmed tetanus; among these, the case-fatality ratio (CFR) was 54%. Fourteen cases were identified at two hospitals reporting zero cases. Among >4000 outpatient cases reported from health centres visited, only 3 cases were identified; the remainder were data errors. CONCLUSIONS: A substantial number of non-NT cases and deaths occur in Uganda. The high CFR and high non-NT burden among men and older children indicate the need for TTCV booster doses across the life course to all individuals as well as improved coverage with the TTCV primary series. The observed data errors indicate the need for data quality improvement activities.


Asunto(s)
Tétanos , Humanos , Uganda/epidemiología , Tétanos/epidemiología , Costo de Enfermedad , Incidencia , Toxoide Tetánico , Masculino , Femenino , Lactante , Preescolar , Niño , Adolescente , Adulto Joven , Adulto , Persona de Mediana Edad , Anciano , Anciano de 80 o más Años , Factores de Riesgo , Vacunación/estadística & datos numéricos
12.
Am J Trop Med Hyg ; 108(5): 954-962, 2023 05 03.
Artículo en Inglés | MEDLINE | ID: mdl-37037429

RESUMEN

In 2017, the Global Task Force for Cholera Control (GTFCC) set a goal to eliminate cholera from ≥ 20 countries and to reduce cholera deaths by 90% by 2030. Many countries have included oral cholera vaccine (OCV) in their cholera control plans. We felt that a simple, user-friendly monitoring tool would be useful to guide national progress toward cholera elimination. We reviewed cholera surveillance data of Uganda from 2015 to 2021 by date and district. We defined a district as having eliminated cholera if cholera was not reported in that district for at least 4 years. We prepared maps to show districts with cholera, districts that had eliminated it, and districts that had eliminated it but then "relapsed." These maps were compared with districts where OCV was used and the hotspot map recommended by the GTFCC. Between 2018 and 2021, OCV was administered in 16 districts previously identified as hotspots. In 2018, cholera was reported during at least one of the four previous years from 36 of the 146 districts of Uganda. This number decreased to 18 districts by 2021. Cholera was deemed "eliminated" from four of these 18 districts but then "relapsed." The cholera elimination scorecard effectively demonstrated national progress toward cholera elimination and identified districts where additional resources are needed to achieve elimination by 2030. Identification of the districts that have eliminated cholera and those that have relapsed will assist the national programs to focus on addressing the factors that result in elimination or relapse of cholera.


Asunto(s)
Vacunas contra el Cólera , Cólera , Humanos , Uganda/epidemiología , Cólera/epidemiología , Cólera/prevención & control , Administración Oral
13.
Emerg Infect Dis ; 17(1): 110-3, 2011 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-21192868

RESUMEN

To determine what measles virus genotype(s) circulated in Uganda after strategic interventions aimed at controlling/eliminating measles, we examined samples obtained during 2006-2009 and found only genotype B3.1, which had not been previously detected. Kenya was the likely source, but other countries cannot be excluded.


Asunto(s)
Vacuna Antisarampión/administración & dosificación , Virus del Sarampión/genética , Virus del Sarampión/aislamiento & purificación , Sarampión/prevención & control , Sarampión/transmisión , Vacunación/estadística & datos numéricos , Adolescente , Niño , Preescolar , Genotipo , Humanos , Lactante , Sarampión/virología , Virus del Sarampión/clasificación , Faringe/virología , Vigilancia de la Población/métodos , Uganda/epidemiología , Orina/virología
14.
J Infect Dis ; 202 Suppl: S5-S11, 2010 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-20684718

RESUMEN

Severe rotavirus diarrhea in children <5 years of age is a major public health problem; however, limited regional and country specific data on rotavirus disease burden are available from sub-Saharan Africa. In June 2006, the World Health Organization Regional Office for Africa initiated rotavirus surveillance in selected African countries. With use of standardized methodology developed by the World Health Organization, children <5 years of age who were hospitalized with severe diarrhea were enrolled, and stool specimens were collected for detection of rotavirus strains with use of a commercial enzyme immunoassay. Rotavirus strains were further characterized for G and P types with use of a reverse-transcriptase polymerase chain reaction. From June 2006 through December 2008, rotavirus surveillance was established at 14 sites in 11 African countries. Of 5461 stool samples collected from children enrolled in 8 countries with 1 or 2 complete years of data, 2200 (40%) were positive for rotavirus. Ninety percent of all rotavirus hospitalizations occurred among children aged 3-12 months. Predominant types included G1P[8] (21%), G2P[4] (7%), and P [8] (29%); however, unusual types were also detected, including G8P[6] (5%), G8P[8] (1%), G12P[6] (1%), and G12P[6] (1%). A high percentage of mixed rotavirus infections was also detected. These preliminary results indicate that rotavirus is a major cause of severe diarrheal disease in African children.


Asunto(s)
Diarrea/epidemiología , Diarrea/virología , Infecciones por Rotavirus/epidemiología , África del Sur del Sahara/epidemiología , Preescolar , Diarrea Infantil/epidemiología , Diarrea Infantil/virología , Humanos , Lactante , Vigilancia de la Población , Estaciones del Año , Factores de Tiempo
15.
J Immunol Sci ; Spec Issue(2): 1107, 2021 Apr 05.
Artículo en Inglés | MEDLINE | ID: mdl-33954303

RESUMEN

BACKGROUND: Poliovirus importations and related outbreaks occurred in the Horn of Africa (HoA) following an initial outbreak, which started in Somalia, spread into Kenya within ten days and later into Ethiopia and gradually to other countries in the region. National preparedness plans for responding to poliovirus introduction were insufficient in many countries of the Region. We describe a series of polio outbreak simulation exercises that were implemented to formally test polio outbreak preparedness plans in the HoA countries, as a step to interrupting further transmission. METHODS: The Polio Outbreak Simulation Exercises (POSEs) were designed and implemented. The results were evaluated and recommendations made. The roles of outbreak simulation exercises in maintaining regional polio-free status were assessed. In addition, we performed a comprehensive review of the national plans of all for seven countries in the HoA Region. RESULTS: Seven simulation exercises, delivered between 2016 and 2017 revealed that participating countries were generally prepared for poliovirus introduction, but the level of preparedness needed improvement. The areas in particular need of strengthening were national preparedness plans, initial response, plans for securing vaccine supply, and communications. CONCLUSIONS: Polio outbreak simulation exercises can be valuable tools to help maintain polio-free status and should be extended to other high-risk countries and subnational areas in the HoA Region and elsewhere. There is also need to standardize the process and methods for conducting POSE for comparability.

16.
BMC Public Health ; 10 Suppl 1: S9, 2010 Dec 03.
Artículo en Inglés | MEDLINE | ID: mdl-21143831

RESUMEN

BACKGROUND: Uganda is currently implementing the International Health Regulations (IHR[2005]) within the context of Integrated Disease Surveillance and Response (IDSR). The IHR(2005) require countries to assess the ability of their national structures, capacities, and resources to meet the minimum requirements for surveillance and response. This report describes the results of the assessment undertaken in Uganda. METHODS: We conducted a descriptive cross-sectional assessment using the protocol developed by the World Health Organisation (WHO). The data collection tools were adapted locally and administered to a convenience sample of HR(2005) stakeholders, and frequency analyses were performed. RESULTS: Ugandan national laws relevant to the IHR(2005) existed, but they did not adequately support the full implementation of the IHR(2005). Correspondingly, there was a designated IHR National Focal Point (NFP), but surveillance activities and operational communications were limited to the health sector. All the districts (13/13) had designated disease surveillance offices, most had IDSR technical guidelines (92%, or 12/13), and all (13/13) had case definitions for infectious and zoonotic diseases surveillance. Surveillance guidelines were available at 57% (35/61) of the health facilities, while case definitions were available at 66% (40/61) of the health facilities. The priority diseases list, surveillance guidelines, case definitions and reporting tools were based on the IDSR strategy and hence lacked information on the IHR(2005). The rapid response teams at national and district levels lacked food safety, chemical and radio-nuclear experts. Similarly, there were no guidelines on the outbreak response to food, chemical and radio-nuclear hazards. Comprehensive preparedness plans incorporating IHR(2005) were lacking at national and district levels. A national laboratory policy existed and the strategic plan was being drafted. However, there were critical gaps hampering the efficient functioning of the national laboratory network. Finally, the points of entry for IHR(2005) implementation had not been designated. CONCLUSIONS: The assessment highlighted critical gaps to guide the IHR(2005) planning process. The IHR(2005) action plan should therefore be developed to foster national and international public health security.


Asunto(s)
Creación de Capacidad , Brotes de Enfermedades/prevención & control , Cooperación Internacional/legislación & jurisprudencia , Vigilancia de la Población/métodos , Salud Pública/legislación & jurisprudencia , Vigilancia de Guardia , Integración de Sistemas , Animales , Control de Enfermedades Transmisibles , Estudios Transversales , Adhesión a Directriz , Humanos , Control Social Formal , Uganda/epidemiología , Zoonosis
17.
Pan Afr Med J ; 37: 137, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33425170

RESUMEN

INTRODUCTION: the August 2018 ebola outbreak in the Democratic Republic of Congo turns out to be second largest outbreak of ebola in public health history. The response to the outbreak which would have halted wider spread to neighboring countries failed. Hence, high risk districts in Uganda initiated preparedness activities in the wake of a possible inflow of cases. This study was therefore designed to identify, describe and assess surveillance activities and preparedness in the Kasese, Ntoroko and Bundibugyo districts of Uganda. METHODS: the study employed the mixed method approach. The qualitative arm involved the use of participant observation to describe surveillance activities that were carried out as part of the ebola preparedness surveillance in the high-risk districts. The quantitative arm included assessment of 102 health facilities on ebola virus disease preparedness with a WHO standard checklist hosted on the Open Data Kit software. Descriptive statistics were performed using STATA (version 14). RESULTS: the study showed that high risk districts employed numerous interlocking public health emergency activities which included readiness assessment, risk mapping and temperature-based screening for ebola at points of entry. Most health workers (91.18%) could correctly state the case definition of ebola although only 56.86% of them were trained on ebola surveillance. CONCLUSION: health worker knowledge on ebola virus disease case definition was high but training and logistics were inadequate. Continuous efforts are required to sustain health workers knowledge on ebola surveillance through trainings and supportive supervision whiles addressing gaps in the operation of ebola screening posts.


Asunto(s)
Brotes de Enfermedades/prevención & control , Fiebre Hemorrágica Ebola/prevención & control , Vigilancia de la Población/métodos , Salud Pública , Adolescente , Adulto , Anciano , Humanos , Persona de Mediana Edad , Uganda/epidemiología , Adulto Joven
18.
Vaccine ; 38(5): 1105-1113, 2020 01 29.
Artículo en Inglés | MEDLINE | ID: mdl-31767466

RESUMEN

BACKGROUND: High-quality vaccination data are critical to planning, implementation and evaluation of immunization programs. However, sub-optimal administrative vaccination data quality in low- and middle-income countries persist for heterogeneous reasons, though most relate to organizational factors and human behavior. The nationwide Data Improvement Team (DIT) strategy in Uganda aimed to strengthen human resource capacity to generate quality administrative vaccination data at the health facility. METHODS: A financial cost analysis of the Uganda DIT strategy (2014-2016) was conducted from the program funder perspective. Activity-based micro-costing from funder financial and program monitoring records was used to estimate total and unit costs by program area (in 2016 US dollars). Hypothetical scenarios were developed to illustrate potential approaches to reducing costs. RESULTS: Over 25 months the DIT strategy was implemented in all 116 operational districts and 3443 (89%) health facilities in Uganda at a total financial cost of US $575 275. Training and deployment of DITs accounted for the highest proportion of expenditure across program areas (69%). Transport, per diems, lodging, and honoraria for DIT members and national supervisors were the main cost drivers of the strategy. Deployment of 557 DIT members cost US $839 per DIT member, US $4 030 per district, and US $136 per health facility. The estimated opportunity cost of government staff time wasn't a major cost driver (2.5%) of total cost. CONCLUSION: The results provide the first estimates of the magnitude and drivers of cost to implement a national workforce capacity building strategy to improve administrative vaccination data quality in a low- or middle-income country. Financial costs are a critical input to combine with future outcome data to describe the cost of strategies relative to performance outcomes. The operational costs of the strategy were modest (0.5-1.6%) relative to the estimated operational costs of Uganda's national immunization program.


Asunto(s)
Costos y Análisis de Costo , Exactitud de los Datos , Programas de Inmunización/economía , Recursos Humanos , Instituciones de Salud , Humanos , Uganda , Vacunación
19.
Clin Infect Dis ; 48 Suppl 2: S153-61, 2009 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-19191611

RESUMEN

Affordable pneumococcal conjugate vaccines will soon become available to developing countries through the Global Alliance for Vaccines and Immunization. Data on Streptococcus pneumoniae meningitis epidemiology in Uganda will assist decision makers in determining the best national vaccine policy. We reviewed acute bacterial meningitis surveillance data for children aged <5 years from 3 sentinel surveillance sites in 3 Ugandan districts collected from 2001 through 2006. Serotype and antibiotic-resistance testing were performed on pneumococcal isolates collected from 2005 through 2006 from the Kampala district in the tropical central region of Uganda. Minimum pneumococcal meningitis incidence estimates were calculated for a portion of the Kampala district and all of the Gulu district, where case ascertainment was more complete. At the 3 sites, 14,388 probable acute bacterial meningitis cases were observed. The most common cause identified was S. pneumoniae (n = 331; 35% of all confirmed cases), which had an overall case fatality ratio of 19%. Yearly pneumococcal meningitis incidence was 3-20 cases per 100,000 population in Kampala versus 28-42 cases per 100,000 population in Gulu. The most commonly identified serotypes were 6A/6B (40%); 43% of isolates were serotypes that are in the available 7-valent pneumococcal conjugate vaccine and 70% are in the proposed 13-valent pneumococcal vaccine. Twenty-five isolates (83%) had intermediate resistance to penicillin but none were fully resistant. Pneumococcal meningitis is common and severe in Uganda, indicating a role for the pneumococcal conjugate vaccine.


Asunto(s)
Meningitis Neumocócica/epidemiología , Meningitis Neumocócica/microbiología , Vacunas Neumococicas/inmunología , Streptococcus pneumoniae/clasificación , Streptococcus pneumoniae/aislamiento & purificación , Antibacterianos/farmacología , Técnicas de Tipificación Bacteriana , Preescolar , Humanos , Incidencia , Lactante , Recién Nacido , Meningitis Neumocócica/mortalidad , Pruebas de Sensibilidad Microbiana , Serotipificación , Uganda/epidemiología
20.
Clin Infect Dis ; 48 Suppl 2: S162-71, 2009 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-19191612

RESUMEN

In a region with high rates of mortality among children aged <5 years, the underfunded health care systems of sub-Saharan Africa have few resources available to perform surveillance activities that can help determine the causes of morbidity and mortality in the region. At present, there are few examples of attempts to promote public health care surveillance that might inform current debates about how to expand and improve surveillance, particularly for bacterial diseases. Driven by this gap in knowledge, we attempted to explore the successes and failures of the Network for Surveillance of Pneumococcal Disease in the East African Region and to share the experiences of what are essentially nonresearch public-sector hospitals in East Africa, with the hopes that surveillance systems for other diseases, especially those that require complex diagnostic support, may be informed by these experiences. The state of services essential for surveillance and the measures taken to overcome any shortcomings are described, as is the progress made in improving clinical diagnosis, laboratory processing, and data management. For surveillance to play a role in public health care, ministries of health and associated institutions must own and push forward the surveillance agenda, with support from global partners, and take advantage of the developments that have been achieved within the institutions.


Asunto(s)
Redes Comunitarias/organización & administración , Infecciones Neumocócicas/epidemiología , Vigilancia de la Población/métodos , África Oriental/epidemiología , Preescolar , Humanos , Lactante
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