84 research outputs found

    Mounting evidence for use of artemisinin derivatives for malaria in early pregnancy

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    Improving service delivery at primary healthcare facilities for achieving Universal Health Coverage: Examining the effects of insecurity in such facilities in Enugu State, Nigeria

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    Background: Availability of health services at the primary healthcare (PHC) level is crucial to the achievement of Universal Health Coverage (UHC). However, insecurity of PHC facilities inspires unavailability of health services. From perspectives of primary health service providers, we examined the effects of insecurity at rural and urban PHC facilities in Enugu, Nigeria. Methodology: The study adopts a qualitative method using in-depth interviews and non-participant observation. The study sites were eight (8) PHC facilities (rural/urban) that were purposively selected. The first author interacted with the health workers and made extensive observations on infrastructure, policing, and other security gaps affecting the facilities. Findings: While health workers wish to provide services as stipulated, the fear of getting hurt or losing their properties to hoodlums scares them, especially during the dusk hours. Owing to infrastructure deficits and lack of security personnel, incidents of losing phones, stolen babies and facility items/consumables, and patients being attacked were said to be recurring. The absence of power supply during the dusk hours tend to heighten their fears, hence health workers close before it gets dark, not minding the consequences on health service users. Conclusion: The issue of insecurity of lives of both the health workers and their clients is paramount to the optimal use of services in the PHC facilities. Insecurity is a priority concern for the health workers, and if not addressed could cause them to completely shun working in certain areas, or shun their jobs completely, with dire consequences for the achievement of UHC

    Improving service delivery at primary healthcare facilities for achieving universal health coverage:Examining the effects of insecurity in such facilities in enugu state, nigeria

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    Background: Availability of health services at the primary healthcare (PHC) level is crucial to the achievement of Universal Health Coverage (UHC). However, insecurity of PHC facilities inspires unavailability of health services. From perspectives of primary health service providers, we examined the effects of insecurity at rural and urban PHC facilities in Enugu, Nigeria. Methodology: The study adopts a qualitative method using in-depth interviews and non-participant observation. The study sites were eight (8) PHC facilities (rural/urban) that were purposively selected. The first author interacted with the health workers and made extensive observations on infrastructure, policing, and other security gaps affecting the facilities. Findings: While health workers wish to provide services as stipulated, the fear of getting hurt or losing their properties to hoodlums scares them, especially during the dusk hours. Owing to infrastructure deficits and lack of security personnel, incidents of losing phones, stolen babies and facility items/consumables, and patients being attacked were said to be recurring. The absence of power supply during the dusk hours tend to heighten their fears, hence health workers close before it gets dark, not minding the consequences on health service users. Conclusion: The issue of insecurity of lives of both the health workers and their clients is paramount to the optimal use of services in the PHC facilities. Insecurity is a priority concern for the health workers, and if not addressed could cause them to completely shun working in certain areas, or shun their jobs completely, with dire consequences for the achievement of UHC

    Increased Risk for Severe Malaria in HIV-1–infected Adults, Zambia

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    In areas in which malaria and HIV-1 are coendemic, adults with severe malaria who show no clinical signs of immunosuppression are likely to be infected with HIV-1

    Artemisinin-based combination therapy in pregnant women in Zambia: efficacy, safety and risk of recurrent malaria.

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    BACKGROUND: In Zambia, malaria is one of the leading causes of morbidity and mortality, especially among under five children and pregnant women. For the latter, the World Health Organization recommends the use of artemisinin-based combination therapy (ACT) in the second and third trimester of pregnancy. In a context of limited information on ACT, the safety and efficacy of three combinations, namely artemether-lumefantrine (AL), mefloquine-artesunate (MQAS) and dihydroartemisinin-piperaquine (DHAPQ) were assessed in pregnant women with malaria. METHODS: The trial was carried out between July 2010 and August 2013 in Nchelenge district, Luapula Province, an area of high transmission, as part of a multi-centre trial. Women in the second or third trimester of pregnancy and with malaria were recruited and randomized to one of the three study arms. Women were actively followed up for 63 days, and then at delivery and 1 year post-delivery. RESULTS: Nine hundred pregnant women were included, 300 per arm. PCR-adjusted treatment failure was 4.7% (12/258) (95% CI 2.7-8.0) for AL, 1.3% (3/235) (95% CI 0.4-3.7) for MQAS and 0.8% (2/236) (95% CI 0.2-3.0) for DHAPQ, with significant risk difference between AL and DHAPQ (p = 0.01) and between AL and MQAS (p = 0.03) treatments. Re-infections during follow up were more frequent in the AL (HR: 4.71; 95% CI 3.10-7.2; p < 0.01) and MQAS (HR: 1.59; 95% CI 1.02-2.46; p = 0.04) arms compared to the DHAPQ arm. PCR-adjusted treatment failure was significantly associated with women under 20 years [Hazard Ratio (HR) 5.35 (95% CI 1.07-26.73; p = 0.04)] and higher malaria parasite density [3.23 (95% CI 1.03-10.10; p = 0.04)], and still women under 20 years [1.78, (95% CI 1.26-2.52; p < 0.01)] had a significantly higher risk of re-infection. The three treatments were generally well tolerated. Dizziness, nausea, vomiting, headache and asthenia as adverse events (AEs) were more common in MQAS than in AL or DHAPQ (p < 0.001). Birth outcomes were not significantly different between treatment arms. CONCLUSION: As new infections can be prevented by a long acting partner drug to the artemisinins, DHAPQ should be preferred in places as Nchelenge district where transmission is intense while in areas of low transmission intensity AL or MQAS may be used

    The relationship of Plasmodium falciparum humeral immunity with HIV-1 immunosuppression and treatment efficacy in Zambia

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    <p>Abstract</p> <p>Background</p> <p>HIV-1 infection affects malaria humeral immunity during pregnancy, but data for non-pregnant adults are lacking. This study reports the impact of HIV-1 infection and other variables on the level of malaria humeral immunity in adults with clinical malaria and whether humeral immune suppression was a risk factor for treatment failure.</p> <p>Methods</p> <p>Sera of 224 HIV-1 infected and 115 uninfected adults were compared for IgG to merozoite antigens AMA-1 and MSP2 (3D7 and FC27 types) determined by ELISA, and for IgG to the Variant Surface Antigens (VSA) of three different parasite line E8B, A4 and HCD6 determined by flow cytometry.</p> <p>Results</p> <p>Compared to HIV-1 uninfected adults, AMA-1 IgG was lower in HIV-1 infected (<it>P </it>= 0.02) and associated with low CD4 count AMA-1 IgG (<it>P </it>= 0.003). Low IgG to all three merozoite antigens was associated with less anemia (<it>P </it>= 0.03). High parasite load was associated with low MSP2 IgG 3D7 and FC27 types (<it>P </it>= 0.02 and <it>P </it>= 0.08). Antibody levels to VSA did not differ between HIV-1 infected and uninfected adults. However, low VSA IgGs were associated with high parasite load (<it>P </it>≤ 0.002 for each parasite line) and with treatment failure (<it>P </it>≤ 0.04 for each parasite line).</p> <p>Conclusion</p> <p>HIV-1 affects humeral responses to AMA-1, but seems to marginally or not affect humeral responses to other merozoite antigens and VSAs. The latter were important for controlling parasite density and predict treatment outcome.</p

    Defining the malaria burden in Nchelenge District, northern Zambia using the World Health Organization malaria indicators survey.

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    BACKGROUND: Malaria is considered as one of the major public health problems and among the diseases of poverty. In areas of stable and relatively high transmission, pregnant women and their newborn babies are among the higher risk groups. A multicentre trial on the safety and efficacy of several formulations of artemisinin-based combination therapy (ACT) during pregnancy is currently on-going in four African countries, including Zambia, whose study site is in Nchelenge district. As the study outcomes may be influenced by the local malaria endemicity, this needs to be characterized. A cross-sectional survey to determine the prevalence and intensity of infection among <10 years old was carried out in March-April 2012 in Nchelenge district. METHODS: The sampling unit was the household where all children < 10 years of age were included in the survey using simple random household selection on a GPS coded list. A blood sample for determining haemoglobin concentration and identifying malaria infection was collected from each recruited child. RESULTS: Six hundred thirty households were selected and 782 children tested for malaria and anaemia. Prevalence of malaria infection was 30.2% (236/782), the large majority (97.9%, 231/236) being Plasmodium falciparum and the remaining ones (2.1%, 5/236) Plasmodium malariae. Anaemia, defined as haemoglobin concentration <11 g/dl, was detected in 51.2% (398/782) children. CONCLUSION: In Zambia, despite the reported decline in malaria burden, pockets of high malaria endemicity, such as Nchelenge district, still remain. This is a border area and significant progress can be achieved only by concerted efforts aimed at increasing coverage of current control interventions across the border

    Mumps outbreak in an unimmunized population – Luanshya District, Copperbelt Province, Zambia, 2015

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    Introduction:&nbsp;mumps is a vaccine-preventable viral disease that may cause deafness, orchitis, encephalitis or death. However, mumps vaccine is not included in Zambia’s Expanded Program for Immunization. In January 2015, Integrated Disease Surveillance and Response data revealed an increase in reported mumps cases in Luanshya District. We investigated to confirm the etiology and generate epidemiological data on mumps in Zambia. Methods:&nbsp;we conducted active case finding, examined possible case-patients, and administered a standard questionnaire. A suspected mumps case was defined as acute onset of salivary gland swelling in a Luanshya resident during January - June 2015. Eight case-patients provided serum samples to test for mumps-specific immunoglobulin IgM, and buccal swabs to test for mumps viral RNA by RT-PCR, and genotyping of mumps virus at the Centers for Disease Control and Prevention, Atlanta, Georgia, USA. Results:&nbsp;from January – June 2015, a total of 283 mumps cases were reported in Luanshya, peaking in April (71 cases) and clustering (81%) in two townships. Of 72 suspected case-patients interviewed, 81% were aged &lt; 15 years (29%, 1 - 4 years) and 61% were female. Common clinical characteristics were buccal tenderness (29%) and fever &gt; 37.5ºC (29%). Mumps virus genotype D was confirmed in five case-patients who tested positive by RT-PCR; six case-patients were sero-positive for anti-mumps IgM antibodies (total seven lab-confirmed cases). Conclusion:&nbsp;our findings represent the first reported epidemiologic description of mumps in Zambia. While the epidemiology is consistent with prior descriptions of mumps in unimmunized populations and no serious complications arose, this report provides data to inform policy discussions regarding mumps vaccination in Zambia

    Improving the availability of vaccines in primary healthcare facilities in South Africa : is the time right for a system redesign process?

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    An uninterrupted supply of vaccines at different supply chain levels is a basic component of a functional immunization programme and care service. There can be no progress toward achieving universal health coverage and sustainable development without continuous availability of essential medicines and vaccines in healthcare facilities. Shortages of vaccines, particularly at health facility level is an issue of grave concern that requires urgent attention in South Africa. The causes of vaccine stock-outs are multifactorial and may be linked to a broader systems issue. These factors include challenges at higher levels such as delays in the delivery of stock from the pharmaceutical depot; health facility level factors, which include a lack of commitment from healthcare workers and managers; human resource factors, such as, staff shortages, and lack of skilled personnel. Therefore, there is a compelling need to address the factors associated with shortages of vaccines in health facilities. This paper highlights the challenges of vaccine availability in South Africa, the associated factors, the available interventions, and recommended interventions for the expanded programme on immunization in South Africa. We propose a system redesign approach as a potentially useful intervention.World Health Organization Regional Office for Africa (WHO/AFRO) and the Hideyo Noguchi Africa Prize (HNAP).http://www.tandfonline.com/loi/khvi20hj2023School of Health Systems and Public Health (SHSPH
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