Geospatial clustering of meningitis: an early warning system (hotspot) for potential meningitis outbreak in upper east region of Ghana

Objective: We mapped and generated hot spots for potential meningitis outbreak from existing data in Upper East region, Ghana.Design: This was a cross-sectional study conducted in 2017Data Source: Meningitis data in the Upper East Region from January 2007, to December 2016.Main outcome measure: We used spatial tools in Quantum Geographic Information System (QGIS) and Geoda to draw choropleth map of meningitis incidence, case fatality and hotspot for potential meningitis outbreak Results: A total of 2312 meningitis cases (suspected and confirmed) were recorded from 2016-2017 with median incidence of 15.0cases/100,000 population (min 6.3, max 47.8). Median age of cases was 15 years (IQR: 6-31 years). Most (44.2%) of those affected were 10 years and below. Females (51.2%) constituted the highest proportion. Median incidence from 2007-2011 was 20cases/100,000 population (Min 11.3, Max 39.9) whilst from 2012-2016 was 11.1cases/100,000 populations (Min 6.3, Max 47.8). A total of 28 significant hotspot sub-districts clusters (p=0.024) were identified with 7 High-high risk areas as potential meningitis outbreak spots.Conclusion: The occurrence of meningitis is not random, spatial cluster with high –high-risk exist in some sub-districts. Overall meningitis incidence and fatality rate have declined in the region with district variations. Districts with high meningitis incidence and fatality rates should be targeted for intervention.Keywords: meningitis outbreak, geospatial clustering, Upper East Region, meningitis incidence, GhanaFunding: Author EA was supported by the West Africa Health Organization (Ref.: Prog/A17IEpidemSurveillN°57212014/mcrt)

Evaluation of viral haemorrhagic fever surveillance system with focus on Ebola virus disease, Bawku municipality- Upper East Region, Ghana, 2011- 2015

Background: We evaluated the Viral haemorrhagic fever (VHF) surveillance system from 2011 to 2015 in the Bawku Municipality, Upper East region, Ghana to determine whether the goals of the surveillance system are being met and to assess the performance of the system attributes.Design: Descriptive secondary data analysis.Setting: Bawku MunicipalityData Source: Review VHF surveillance records, interviewed community-based surveillance volunteers (CBSVs) and reviewed vital events registers. We also assessed the system attributes by reviewing records and interviewing key stakeholders involved in VHF surveillance system with focus on Ebola using checklist and semi structured questionnaire developed based on the Centers for Disease Control and Prevention (CDC) guidelines.Main outcome measure: System attributes of the VHF surveillance systemResults: Population under surveillance was 105,849. The system required detail information about suspected cases. However, it had a simple and clear standard case definitions, and was well integrated with the IDSR. There is a regular and timely flow of information. The system captured 155 suspected cases nationwide from 2011 to 2015 and all tested negative. Of these, Upper East Region reported 10 suspected cases including 4 suspected cases from Bawku Municipality.Conclusion: The VHF surveillance system achieved its objectives. However, poor data quality, inadequately trained surveillance officers, and inadequate financial support are threats to the effectiveness of the system.Keywords: Viral haemorrhagic fever, surveillance system evaluation, attributes, Bawku Municipality, GhanaFunding: This work was supported by Ghana Field Epidemiology and Laboratory Training Program (GFELTP), University of Ghan

Direct observation of outpatient management of malaria in a rural ghanaian district

Introduction: in Ghana, malaria continues to top outpatient morbidities; accounting for about 40% of all attendances. Effective case-management is key to its control. We evaluated case-management practices of uncomplicated malaria in Kwahu South District (KSD) health facilities to determine their conformity to guidelines. Methods: we conducted a cross sectional survey at all public health facilities in three randomly selected sub-districts in KSD. A non-participatory observation of suspected malaria consultations was conducted. Suspected malaria was defined as any person with fever (by history or measured axillary temperature > or equal 37.5 oC) presenting at the selected health facilities between 19th and 29th April 2013. Findings were expressed as frequencies, relative frequencies, mean (± standard deviation) and median. Results: of 70 clinical observations involving 10 prescribers in six health facilities, 40 (57.1%) were females and 16 (22.9%) were below five years. Median age was 18 years (interquartile range: 5-33). Overall, 63 (90.0%) suspected case-patients had diagnostic tests. Two (3.6%) were treated presumptively. All 31 confirmed and 10 (33.3%) of the test negative case-patients received Artemisinin-based Combination Therapies (ACTs). However, only 12 (27.9%) of the 43 case-patients treated with ACT received Artesunate-Amodiaquine (AA). Only three (18.8%) of the under-fives were examined for non-malarial causes of fever. Mean number of drugs per patient was 3.7 drugs (± 1.1). Only 45 (64.3%) patients received at least one counseling message. Conclusion: conformity of malaria case-management practices to guidelines in KSD was suboptimal. Apart from high rate of diagnostic testing and ACT use, prescription of AA, physical examination and counseling needed improvement

Tuberculosis surveillance system evaluation: case of Ga West municipality, Ghana, 2011 to 2016

Background: Evaluate the Tuberculosis (TB) surveillance system in the Ga West Municipality to determine if it is achieving its objectives, and to assess its attributes and usefulness.Design: Descriptive analysis of primary and secondary dataData source: Stakeholder interviews and record reviews on the objectives and operation of the surveillance system at all levels of the system.Intervention: We evaluated the system’s operation from 2011-2015 using the Centers for Disease Control and Prevention (CDC) updated guidelines for evaluating public health surveillance systems and the World Health Organisation (WHO) TB surveillance checklist for assessing the performance of national surveillance systems.Results: The TB surveillance system in the municipality was functional and operated at all levels for timely detection of cases, accurate diagnosis, and case management. The system improved management of TB/HIV co-infections. The average time taken to confirm a suspected TB case was one day. The registration of a confirmed case and subsequent treatment happen immediately after confirmation. The municipality detected 109 of 727 TB cases in 2015 (case detection rate=15%). The positive predictive value (PPV) was 6.4%. There was one diagnostic centre in the municipality. Private facilities involvement in TB surveillance activities was low (1/15).Conclusion: The Tuberculosis surveillance system in the Ga West Municipality is well structured but partially meeting its objectives. The system is timely, stable and acceptable by most stakeholders and useful at all levels. It has no major data quality issues. Private health facilities in the municipality should be well incorporated into TB surveillance.Keywords: tuberculosis, evaluation, surveillance system, system attributes, Ga WestFunding: This work was supported by Ghana Field Epidemiology and Laboratory Training Program (GFELTP), University of Ghana through the support of the West Africa Health Organization (Ref.: Prog/A17IEpidemSurveillN°57212014/mcrt) to B-Y

Imminent meningitis outbreak prevented by early warning and response action: Nadowli-Kaleo District, Upper West Region, Ghana-2017

Introduction: On 20th February 2017, health officials in Nadowli-Kaleo District (NKD) of Ghana's Upper West Region received reports of an upsurge in the number of meningitis case-patients reporting to the district's health facilities. The number of cases had exceeded the alert but not epidemic threshold for meningitis for the district. We investigated to identify the aetiologic agent, determine the risk factors and implement control measures. Methods: We conducted an unmatched case-control study. A meningitis case-patient was any NKD resident with any of the following signs and symptoms: neck stiffness, convulsion, bulging fontanelle (infants), altered consciousness or other meningeal signs with or without fever, from 1st January to 30th March 2017. For each case-patient, 2 controls (neighbours of case-patients without meningitis signs and symptoms) were identified. Demographic and clinical data were obtained through records review and case-patient interviews. Cerebrospinal fluid (CSF) samples were collected for laboratory investigation. Significant risk factors were identified using multivariable logistic regression. Results: In all 67 case-patients comprising 35 (52.2%) males and two (3%) children aged < 5 years were identified. The median age of case-patients was 24 years (interquartile range: 15–46 years). Ten deaths were recorded (case fatality rate: 14.9%). Most affected age group was 15-24 years with 18 (26.9%) case-patients and an age-specific attack rate of 170.8/100000 population. Nadowli Central sub-district, the epicenter, recorded 14 (22.4%) cases. Dominant aetiologic agent was Neisseria meningitidis isolated from 17 (58.6%) of 29 culture-positive CSF samples. Compared to controls, meningitis case-patients had higher odds of living in single window rooms (adjusted odds ratio (aOR) =5.05; 95% confidence interval (CI) =1.35-11.66), or in rooms inhabited by more than two people (aOR=3.28, CI=1.57-7.73). Conclusion: Neisseria meningitidis caused the upsurge in meningitis cases in NKD, with the youth being the most affected age group. Living in poorly ventilated rooms and overcrowded rooms were risk factors. Prompt case-management and health education helped control the occurrence and prevented an outbreak

Outbreak of highly pathogenic avian influenza in commercial poultry farms, Kwahu-West Municipality, Ghana

Introduction: Avian Influenza is a highly contagious viral infection that mainly affects domesticated birds. The Kwahu-West Municipal Veterinary Office was notified of sudden deaths of birds on a poultry farm in June-2018. Seven days later, a second farm sited 100 meters from the index case-farm also recorded bird deaths. We investigated to confirm the causative agent, identify its source, and implement control measures. Methods: We conducted a survey of six farms and human contacts in the area. A suspected case-farm of HPAI was any farm in Nkawkaw with sudden death of bird(s), with or without clinical signs of HPAI from June 1 to July 10, 2018. Six bird carcasses were collected on affected farms for laboratory confirmation of the causative agent. We interviewed owners of affected farms and assessed the farm environments, as well as clinical status of human contacts. Results: A total 2,280 birds were affected on two adjacent farms. HPAI-H5N1 was confirmed for all samples investigated. The index case-farm with 1,438 birds, reported 30 bird-deaths, 24 hours after receiving birds from an HPAI-H5N1 confirmed farm in Boankra in the Ashanti Region, 84 km away from the index case-farm. The second case-farm recorded bird deaths 7-days later. Both farms operated aluminum sheet-roofed metallic-mesh pens without fencing. All twenty-three human contacts were asymptomatic of flu, after 14-days follow-up. Conclusion: This HPAI-H5N1 outbreak was likely imported from the Ashanti Region of Ghana, due to lax livestock movement regulations and biosecurity measures. Disinfection and depopulation exercises effectively controlled the outbreak. We recommend strict implementation of biosafety measures on farms and at entry points in the district

Demographic and socio-cultural factors influencing contraceptive uptake among women of reproductive age in Tamale Metropolis, Northern Region, Ghana

Background: This study assessed some demographic and socio-cultural factors that influence contraceptive uptake among reproductive-aged women in Tamale Metropolis of the Northern Region, GhanaDesign: This was a cross-sectional study conducted from February to March 2015Setting: All three sub Metropolis in TamaleParticipants: All community members and women of reproductive age (15-49years)Intervention: The study used cluster sampling to recruit women who were interviewed using a structured questionnaire. Nine focus group discussions (FGDs) were also held among community members who were purposively selected.Main outcome measures: contraceptive uptake (use of contraceptive)Results: The mean age of the women was 26 years. The prevalence of contraceptive uptake among reproductive-age women was 36.8% (165/448). Women with secondary school education [AOR=4.4(95%CI:1.6-12.4)], and those in homes where decisions on having children were made by both partners [AOR=2.1(95%CI:1.1-04.42)] were more likely to use contraceptives. Unemployed women [AOR=0.3(95%CI:0.1-0.8)], women whose husbands were unaware of their contraceptive use [AOR=0.4(95%CI:0.2-0.9)] and those having a culture or religion that frowns on contraceptive use [AOR=0.4(95%CI:0.2-0.8)] were less likely to use contraceptive among women in the Tamale Metropolis.Conclusion: The study found a contraceptive prevalence rate (CPR) in Tamale Metropolis, Northern Ghana to be 36.8%. Education and living in a home where childbearing decisions are made together were identified as positive factors influencing contraceptive uptake.Keywords: Contraceptive Uptake; Tamale Metropolis; Reproductive-aged women; socio cultural factors; Contraceptive prevalenceFunding: This work was funded by the author

Dog Bites and Rabies in the Eastern Region of Ghana in 2013-2015: A Call for a One-Health Approach.

BACKGROUND: A One-Health approach is advocated to ensure effective rabies surveillance in sub-Saharan Africa. Information is needed to assess the current state of dog bites and rabies in Ghana. We analyzed data on reported events in the Eastern Region of Ghana from 2013 to 2015 to generate information that can be used for rabies elimination in Ghana through the One-Health approach. METHOD: We extracted data on dog bites and rabies from the database of the regional health service and performed descriptive analysis using Epi Info version 7™. We followed up with interviews with three key informants from the health and veterinary services on issues related to surveillance and data quality. RESULTS: Overall, 4821 dog bites were reported over the three-year period. This translated into an annual incidence of 172 cases per a population of 100,000. Most of cases were in children aged less than 10 yrs. Fifteen (53.3% males) cases of rabies were recorded in seven out of the 26 municipalities and districts, translating into a rabies to dog bite ratio of 3: 1000. The median age of victims was 9 years (range: 3-72 years). A parallel and uncoordinated system of rabies surveillance is maintained by the health and veterinary services, with gross disparities in the number of reported events and overall impression of underreporting. CONCLUSION: Rabies remains an important cause of preventable deaths in this region. An integrated approach to surveillance based on the One-Health concept needs to be adopted

Evaluation of the measles surveillance system of the Ga West Municipality, Ghana, 2017

Introduction: Over 140,000 people globally died from measles in 2018; most of which occurred in developing countries. In Ghana, measles is one of the diseases earmarked for elimination in the Integrated Disease Surveillance and Response (IDSR) strategy. The measles surveillance system seeks to monitor trends, detect outbreaks and report in a timely manner. In order to improve upon the performance of the Ga West Municipal Measles surveillance system, it was evaluated with the aim of determining its effectiveness. Methods: We used CDC updated guidelines for surveillance system evaluation to assess system attributes. Measles surveillance data from 2012 – 2016 were abstracted from the DHIMS. Case investigation forms, weekly and monthly IDSR reporting forms were reviewed to validate abstracted data. Key surveillance officers were interviewed on system operations. Data was analyzed descriptively to generate frequencies and relative frequencies. Results: The system operated with a reasonable number of disease variables and case definition was simple to apply. The system was found to be integrated with the national IDSR. Government facilities across all seven sub-districts, owned and contributed data to the system. Of the 48 suspected case-patients, 39 (81.0%) were investigated; none of which was positive giving a Predictive value positive (PVP) of 0%. Majority of facilities (though privately owned) did not contribute data to the system. All tested samples were received at the laboratory within the stipulated three (3) days. The system was stable with available case base forms. Over 56% (22/39) of the samples tested had no vaccination records. Data is used to guide routine and supplementary immunization activities. Conclusion: Ga west Municipal measles surveillance system is simple, flexible and generally acceptable. It is sensitive, timely, stable but with low representativeness. It is therefore effective. Municipal health officials have been sensitized on private sector participation and need for quality and timely data

Foodborne disease outbreak in a resource-limited setting: a tale of missed opportunities and implications for response

Introduction: Foodborne diseases (FBD) have emerged as a major public health problem worldwide. Though the global burden of FBD is currently unknown, foodborne diarrhoeal diseases kill 1.9 million children globally every year. On 25th September 2014, health authorities in Eastern Region of Ghana were alerted of a suspected FBD outbreak involving patrons of a community food joint. We investigated to determine the magnitude, source and implement control and preventive measures. Methods: A retrospective cohort study was conducted. We reviewed medical records for data on demographics and clinical features. A suspected foodborne disease was any person in the affected community with abdominal pain, vomiting and or diarrhea between 25th and 30th September 2014 and had eaten from the food joint. We conducted active case search, descriptive data analysis and calculated food specific attack rate ratios (ARR) and their corresponding 95% confidence intervals. Results: Of 43 case-patients, 44.2% (19/43) were males; median age was 19 years (interquartile range: 17-24 years). Overall attack rate was 43.4% (43/99) with no fatality. Case counts rose sharply for four hours to a peak and fell to baseline levels after 12 hours .Compared to those who ate other food items, patrons who ate “waakye” and “shitor” were more likely to develop foodborne disease [ARR=4.1 (95% CI=1.09-15.63)]. Food samples and specimens from case-patients were unavailable for testing. Laboratory diagnostic capacity was also weak. Conclusion: A point source FBD outbreak linked to probable contaminated “waakye” and or “shitor” occurred. Missed opportunities for definitive diagnosis highlighted the need for strengthening local response capacity.Pan African Medical Journal 2016; 2