Browsing by Author "Malm, K.L."

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Acute Febrile Illness: The Role of Respiratory Syncytial Virus and Malaria in an Urban Peadiatric Population in Ghana
(University of Ghana, 2011-10) Malm, K.L.; Koram, K.A.; Gyapong, J.
Introduction: Fever describes an increase in internal body temperature to levels that are above normal (commonly oral/axillary measurement of normal human body temperature is 36.8±0.7 °C or 98.2±1.3 °F) and is the most common response of the body to any insult to the body. The most common cause of fever in our setting is malaria and therefore children get treated for malaria once they have a fever whether the cause is proven (by laboratory confirmation) to be malaria or not. Other common causes of childhood fever, such as respiratory infections are not usually considered, although this has been found to be responsible for a high proportion of childhood illness in the West African Region in places such as The Gambia. Most of these respiratory infections are caused by viral agents including respiratory syncytial virus (RSV). Very little information exists on causes of fever in Ghana and therefore this study was conducted to determine the relative importance of RSV and malaria as causes of Acute Febrile Ilness in children under 5 years presenting at an urban hospital in Accra. Methods: The study recruited children under five years with an axillary temperature≥ 37.5°C who presented to the out-patients department of the La General Hospital from February 2009 to February 2010. A questionnaire was administered to their parents/caretakers (after consenting to allow their children to be part of the study) to elicit the demographic and socioeconomic characteristics of the recruited children and a physical examination conducted all children. Nasopharyngeal aspirates and blood samples were taken for polymerase chain reaction (PCR) for RSV and microscopy for malaria parasites respectively. A case control study was also undertaken to determine the risk factors for RSV infection among acute respiratory infection cases. Cases were children with acute respiratory infection who were positive for RSV and controls were children with acute respiratory infection who were negative for RSV. Results: Malaria, defined as presence of malaria parasites on microscopy, was found in 11.2% of all acute febrile illness. RSV was seen in 15.6% and 17.5% of acute febrile illness and respiratory infections respectively. Seven children representing 1.5% of children with acute febrile illness were positive for both malaria and RSV. Overcrowding and exclusive breastfeeding were significantly positively associated with RSV infection (p-value<0.01), whilst male gender, young age of less than one year and prematurity were also positively associated with RSV infection though not statistically significant. Discussion and Conclusion: The proportion of acute febrile illness due to malaria is lower than has been recorded routinely in children less than five years in this urban hospital. RSV is significantly prevalent in these children. Co-morbid infection with RSV and malaria was low. It is therefore important health practitioners support their diagnosis of malaria with laboratory confirmation, and also look out for other causes of fever such as RSV. The practice of treating almost all cases of fever as malaria needs to be examined critically.
Direct observation of outpatient management of malaria in a rural ghanaian district
(Pan African Medical Journal, 2014-12) Ameme, D.K.; Afari, E.A.; Nyarko, K.M.; Malm, K.L.; Sackey, S.; Wurapa, F.
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. © Donne Kofi Ameme et al.
Economic burden of malaria on businesses in Ghana: a case for private sector investment in malaria control
(Malaria Journal, 2016) Nonvignon, J.; Aryeetey, G.C.; Malm, K.L.; et al.
Background: Despite the significant gains made globally in reducing the burden of malaria, the disease remains a major public health challenge, especially in sub-Saharan Africa (SSA) including Ghana. There is a significant gap in financing malaria control globally. The private sector could become a significant source of financing malaria control. To get the private sector to appreciate the need to invest in malaria control, it is important to provide evidence of the economic burden of malaria on businesses. The objective of this study, therefore, was to estimate the economic burden on malaria on businesses in Ghana, so as to stimulate the sector’s investment in malaria control. Methods: Data covering 2012–2014 were collected from 62 businesses sampled from Greater Accra, Ashanti and Western Regions of Ghana, which have the highest concentration of businesses in the country. Data on the cost of businesses’ spending on treatment and prevention of malaria in staff and their dependants as well as staff absentee‑ ism due to malaria and expenditure on other health-related activities were collected. Views of business leaders on the effect of malaria on their businesses were also compiled. The analysis was extrapolated to cover 5828 businesses across the country. Results: The results show that businesses in Ghana lost about US$6.58 million to malaria in 2014, 90 % of which were direct costs. A total of 3913 workdays were lost due to malaria in firms in the study sample during the period 2012–2014. Businesses in the study sample spent an average of 0.5 % of the annual corporate returns on treatment of malaria in employees and their dependants, 0.3 % on malaria prevention, and 0.5 % on other health-related corpo‑ rate social responsibilities. Again business leaders affirmed that malaria affects their businesses’ efficiency, employee attendance and productivity and expenses. Finally, about 93 % of business leaders expressed the need private sector investment in malaria control. Conclusions: The economic burden of malaria on businesses in Ghana cannot be underestimated. This, together with business leaders’ acknowledgement that it is important for private sector investment in malaria control, provides motivation for engagement of the private sector in financing malaria control activities.
Foodborne Illness Among School Children in Ga East, Accra
(Ghana Medical Journal, 2015-06) Malm, K.L.; Nyarko, K.M.; Yawson, A.E.; Gogo, B.; Lawson, A.; Afari, E.
A food borne illness was reported in Ga-East district of Greater Accra Region among school children in May, 2007 after eating food provided at school. The objective of the investigation was to determine the source, mode of contamination and the causative agent. A case-control study was conducted, cases were schoolchildren with abdominal symptoms and controls were children of the same sex and class without any symptom during the same period. The school children were selected by systematic sampling. Food handlers and the children were interviewed by a structured questionnaire. Food handlers were physically examined and their stools and blood examined. The kitchen for food preparation was inspected. Risks of food borne infection from the foods eaten were determined using attack rates. The minimum, peak and maximum incubation periods were 2, 11 and 61 hours respectively. The source was rice and groundnut soup (with the highest attack rate difference). Stool and blood samples of food handlers were not infective. Storage facility for food items was poor. No food samples were available for organism isolation. A protocol to prevent such outbreaks was nonexistent. The short incubation period and symptoms presented suggest an infective origin. The storage of the meat may potentially have been the point of contamination. The study showed that the schoolchildren ate contaminated food although the investigation could not determine the causative agent. Protocols to prevent such outbreaks need to be developed for the schools. (PDF) Foodborne Illness Among School Children in Ga East, Accra. Available from: https://www.researchgate.net/publication/280626402_Foodborne_Illness_Among_School_Children_in_Ga_East_Accra [accessed Sep 18 2018].
Genotypic glucose-6-phosphate dehydrogenase (G6PD) deficiency protects against Plasmodium falciparum infection in individuals living in Ghana
(PLOS ONE, 2021) Amoah, L.E.; Asare, K.K.; Dickson, D.; Abankwa, J.; Busayo, A.; Bredu, D.; Annan, S.; Asumah, G.A.; Peprah, N.Y.; Asamoah, A.; Malm, K.L.
The global effort to eradicate malaria requires a drastic measure to terminate relapse from hypnozoites as well as transmission via gametocytes in malaria-endemic areas. Primaquine has been recommended for the treatment of P. falciparum gametocytes and P. vivax hypnozoites, however, its implementation is challenged by the high prevalence of G6PD deficient (G6PDd) genotypes in malaria endemic countries. The objective of this study was to profile G6PDd genotypic variants and correlate them with malaria prevalence in Ghana.
Malaria parasitaemia and mRDT diagnostic performances among symptomatic individuals in selected health care facilities across Ghana
(BMC Public Health, 2021) Abuaku, B.; Amoah, L.E.; Peprah, N.Y.; Asamoah, A.; Amoako, E.O.; Donu, D.; Adu, G.A.; Malm, K.L.
Background: Parasitological diagnosis generates data to assist malaria-endemic countries determine their status within the malaria elimination continuum and also inform the deployment of proven interventions to yield maximum impact. This study determined prevalence of malaria parasitaemia and mRDT performances among febrile patients in selected health care facilities across Ghana. Methods: This study was a cross-sectional survey conducted in the previously 10 regions of Ghana from May to August 2018. Each patient suspected to have uncomplicated malaria was tested using microscopy and two malaria rapid diagnostic tests (mRDTs): routinely used CareStart™ Malaria HRP2 (Pf) and SD Bioline Malaria Ag Pf (HRP2/ pLDH). Main outcome variables were malaria slide and CareStart™ Malaria HRP2 (Pf) positivity rates; and diagnostic accuracy of CareStart™ Malaria HRP2 (Pf) and SD Bioline Malaria Ag Pf (HRP2/pLDH) using microscopy as “gold standard”. Results: Overall parasite positivity rates were 32.3% (6266/19402) by mRDT and 16.0% (2984/18616) by microscopy, with Plasmodium falciparum mono-infection accounting for 98.0% of all infections. The odds of parasitaemia by microscopy was significantly lower among female patients compared with males (OR = 0.78; 95% CI: 0.66–0.91), and among patients with history of previous antimalarial intake compared with those with no such history (OR = 0.72; 95% CI: 0.54–0.95). Overall sensitivity of CareStart™ Malaria HRP2 (Pf) was statistically similar to that of the HRP2 band of SD Bioline Malaria Ag Pf (HRP2/pLDH) combo kit (95.4%; 95% CI: 94.6–96.1 vs 94.3%; 95% CI: 93.4–95.1; p = 0.065) but significantly higher than the pLDH band (89.3%; 95% CI: 88.1–90.4; p < 0.001). The same pattern was observed for negative predictive value. Conclusions: Malaria control interventions should be targeted at the general population, and history of antimalarial intake considered a key predictor of malaria slide negativity. Furthermore, HRP2-based mRDTs remain effective diagnostic tool in the management of suspected uncomplicated malaria in the country.
Malaria parasitaemia and mRDT diagnostic performances among symptomatic individuals in selected health care facilities across Ghana
(BMC Public Health, 2021) Abuaku, B.; Amoah, L.E.; Peprah, N.Y.; Asamoah, A.; Amoako, E.O.; Donu, D.; George Asumah Adu3; Adu, G.A.; Malm, K.L.
Background: Parasitological diagnosis generates data to assist malaria-endemic countries determine their status within the malaria elimination continuum and also inform the deployment of proven interventions to yield maximum impact. This study determined prevalence of malaria parasitaemia and mRDT performances among febrile patients in selected health care facilities across Ghana. Methods: This study was a cross-sectional survey conducted in the previously 10 regions of Ghana from May to August 2018. Each patient suspected to have uncomplicated malaria was tested using microscopy and two malaria rapid diagnostic tests (mRDTs): routinely used CareStart™ Malaria HRP2 (Pf) and SD Bioline Malaria Ag Pf (HRP2/ pLDH). Main outcome variables were malaria slide and CareStart™ Malaria HRP2 (Pf) positivity rates; and diagnostic accuracy of CareStart™ Malaria HRP2 (Pf) and SD Bioline Malaria Ag Pf (HRP2/pLDH) using microscopy as “gold standard”. Results: Overall parasite positivity rates were 32.3% (6266/19402) by mRDT and 16.0% (2984/18616) by microscopy, with Plasmodium falciparum mono-infection accounting for 98.0% of all infections. The odds of parasitaemia by microscopy was significantly lower among female patients compared with males (OR = 0.78; 95% CI: 0.66–0.91), and among patients with history of previous antimalarial intake compared with those with no such history (OR = 0.72; 95% CI: 0.54–0.95). Overall sensitivity of CareStart™ Malaria HRP2 (Pf) was statistically similar to that of the HRP2 band of SD Bioline Malaria Ag Pf (HRP2/pLDH) combo kit (95.4%; 95% CI: 94.6–96.1 vs 94.3%; 95% CI: 93.4–95.1; p = 0.065) but significantly higher than the pLDH band (89.3%; 95% CI: 88.1–90.4; p < 0.001). The same pattern was observed for negative predictive value. Conclusions: Malaria control interventions should be targeted at the general population, and history of antimalarial intake considered a key predictor of malaria slide negativity. Furthermore, HRP2-based mRDTs remain effective diagnostic tool in the management of suspected uncomplicated malaria in the country.
Malaria parasitaemia and mRDT diagnostic performances among symptomatic individuals in selected health care facilities across Ghana
(BMC Public Health, 2021) Abuaku, B.; Amoah, L.E.; Peprah, N.Y.; Asamoah, A.; Amoako, E.O.; Donu, D.; Adu, G.A.; Malm, K.L.
Background: Parasitological diagnosis generates data to assist malaria-endemic countries determine their status within the malaria elimination continuum and also inform the deployment of proven interventions to yield maximum impact. This study determined prevalence of malaria parasitaemia and mRDT performances among febrile patients in selected health care facilities across Ghana. Methods: This study was a cross-sectional survey conducted in the previously 10 regions of Ghana from May to August 2018. Each patient suspected to have uncomplicated malaria was tested using microscopy and two malaria rapid diagnostic tests (mRDTs): routinely used CareStart™ Malaria HRP2 (Pf) and SD Bioline Malaria Ag Pf (HRP2/ pLDH). Main outcome variables were malaria slide and CareStart™ Malaria HRP2 (Pf) positivity rates; and diagnostic accuracy of CareStart™ Malaria HRP2 (Pf) and SD Bioline Malaria Ag Pf (HRP2/pLDH) using microscopy as “gold standard”. Results: Overall parasite positivity rates were 32.3% (6266/19402) by mRDT and 16.0% (2984/18616) by microscopy, with Plasmodium falciparum mono-infection accounting for 98.0% of all infections. The odds of parasitaemia by microscopy was significantly lower among female patients compared with males (OR = 0.78; 95% CI: 0.66–0.91), and among patients with history of previous antimalarial intake compared with those with no such history (OR = 0.72; 95% CI: 0.54–0.95). Overall sensitivity of CareStart™ Malaria HRP2 (Pf) was statistically similar to that of the HRP2 band of SD Bioline Malaria Ag Pf (HRP2/pLDH) combo kit (95.4%; 95% CI: 94.6–96.1 vs 94.3%; 95% CI: 93.4–95.1; p = 0.065) but significantly higher than the pLDH band (89.3%; 95% CI: 88.1–90.4; p < 0.001). The same pattern was observed for negative predictive value. Conclusions: Malaria control interventions should be targeted at the general population, and history of antimalarial intake considered a key predictor of malaria slide negativity. Furthermore, HRP2-based mRDTs remain effective diagnostic tool in the management of suspected uncomplicated malaria in the country.
Nationwide molecular surveillance of three Plasmodium species harboured by symptomatic malaria patients living in Ghana
(Parasites & Vectors, 2022) Amoah, L.E.; Asare, K.K.; Dickson, D.; Anang, S.-F; Busayo, A.; Bredu, D.; Asumah, G.; Peprah, N.; Asamoah, A.; Abuaku, B.; Malm, K.L.
Background: Clinical presentations of malaria in Ghana are primarily caused by infections containing microscopic densities of Plasmodium falciparum, with a minor contribution from Plasmodium malariae and Plasmodium ovale. However, infections containing submicroscopic parasite densities can result in clinical disease. In this study, we used PCR to determine the prevalence of three human malaria parasite species harboured by suspected malaria patients attending healthcare facilities across the country. Methods: Archived dried blood spots on flter paper that had been prepared from whole blood collected from 5260 patients with suspected malaria attending healthcare facilities across the country in 2018 were used as experimental material. Plasmodium species-specifc PCR was performed on DNA extracted from the dried blood spots. Demo‑ graphic data and microscopy data for the subset of samples tested were available from the original study on these specimens. Results: The overall frequency of P. falciparum, P. malariae and P. ovale detected by PCR was 74.9, 1.4 and 0.9%, respectively. Of the suspected symptomatic P. falciparum malaria cases, 33.5% contained submicroscopic densities of parasites. For all regions, molecular diagnosis of P. falciparum, P. malariae and P. ovale was signifcantly higher than diagnosis using microscopy: up to 98.7% (75/76) of P. malariae and 97.8% (45/46) of P. ovale infections detected by PCR were missed by microscopy. Conclusion: Plasmodium malariae and P. ovale contributed to clinical malaria infections, with children aged between 5 and 15 years harbouring a higher frequency of P. falciparum and P. ovale, whilst P. malariae was more predominant in individuals aged between 10 and 20 years. More sensitive point-of-care tools are needed to detect the presence of low-density (submicroscopic) Plasmodium infections, which may be responsible for symptomatic infections.
Nationwide molecular surveillance of three Plasmodium species harboured by symptomatic malaria patients living in Ghana
(Parasites & Vectors, 2022) Amoah, L.E.; Asare, K.K.; Dickson, D.; Anang, S-F; Busayo, A.; Bredu, D.; Asumah, G.; Peprah, N.; Asamoah, A.; Abuaku, B.; Malm, K.L.
Background: Clinical presentations of malaria in Ghana are primarily caused by infections containing microscopic densities of Plasmodium falciparum, with a minor contribution from Plasmodium malariae and Plasmodium ovale. However, infections containing submicroscopic parasite densities can result in clinical disease. In this study, we used PCR to determine the prevalence of three human malaria parasite species harboured by suspected malaria patients attending healthcare facilities across the country. Methods: Archived dried blood spots on filter paper that had been prepared from whole blood collected from 5260 patients with suspected malaria attending healthcare facilities across the country in 2018 were used as experimental material. Plasmodium species-specific PCR was performed on DNA extracted from the dried blood spots. Demo‑ graphic data and microscopy data for the subset of samples tested were available from the original study on these specimens. Results: The overall frequency of P. falciparum, P. malariae and P. ovale detected by PCR was 74.9, 1.4 and 0.9%, respectively. Of the suspected symptomatic P. falciparum malaria cases, 33.5% contained submicroscopic densities of parasites. For all regions, molecular diagnosis of P. falciparum, P. malariae and P. ovale was significantly higher than diagnosis using microscopy: up to 98.7% (75/76) of P. malariae and 97.8% (45/46) of P. ovale infections detected by PCR were missed by microscopy. Conclusion: Plasmodium malariae and P. ovale contributed to clinical malaria infections, with children aged between 5 and 15 years harbouring a higher frequency of P. falciparum and P. ovale, whilst P. malariae was more predominant in individuals aged between 10 and 20 years. More sensitive point-of-care tools are needed to detect the presence of low-density (submicroscopic) Plasmodium infections, which may be responsible for symptomatic infections.
Patterns of health service utilization at a medical school clinic in Ghana
(Ghana medical journal, 2012-09) Yawson, A.E.; Malm, K.L.; Adu, A.A.; Wontumi, G.M.; Biritwum, R.B.
The University of Ghana Medical School (UGMS) Clinic provides healthcare service which is free at point of service to students, staff, retired staff and dependents of staff of the College of Health Sciences. However, since 1983, no in-depth review of health service provision or utilization has been undertaken. This study reviewed client characteristics, utilization and disease patterns at the clinic and also compared the disease patterns to that of other primary health facilities nationwide. This was an analytical cross-sectional study undertaken at the UGMS clinic in Korle-Bu. It was a retrospective review of records of all clients attending the facility from January 2002 to December, 2004. More males than females attended the clinic and majority (63.9%) of clients were between 15-44 years (median age was 26 years). Dependents of staff constituted the highest attendants (41%) to the clinic. Among staff, junior staffs were in the majority. Malaria, respiratory tract infection and musculoskeletal pain were the most common conditions seen. Overall, 83% of clients were treated and discharged per visit without the need for review visits. Dependents of staff used the facility the most and they live in many different part of the city of Accra, and to ask them to attend the clinic for care is not efficient. It will be better to provide or supplement their securing of insurance so that they could access health care close to their homes and save time and attention to students and staff.
Patterns Of Health Service Utilization at a Medical School Clinic in Ghana
(Ghana medical journal, 2012-09) Yawson, A.E.; Malm, K.L.; Adu, A.A.; Wontumi, G.; Biritwum, R.B.
Background: The University of Ghana Medical School (UGMS) Clinic provides healthcare service which is free at point of service to students, staff, retired staff and dependents of staff of the College of Health Sciences. However, since 1983, no in-depth review of health service provision or utilization has been undertaken. This study reviewed client characteristics, utilization and disease patterns at the clinic and also compared the disease patterns to that of other primary health facilities nationwide. Methods: This was an analytical cross–sectional study undertaken at the UGMS clinic in Korle-Bu. It was a retrospective review of records of all clients attending the facility from January 2002 to December, 2004. Results: More males than females attended the clinic and majority (63.9%) of clients were between 15-44 years (median age was 26 years). Dependents of staff constituted the highest attendants (41%) to the clinic. Among staff, junior staffs were in the majority. Malaria, respiratory tract infection and musculoskeletal pain were the most common conditions seen. Overall, 83% of clients were treated and discharged per visit without the need for review visits. Conclusion: Dependents of staff used the facility the most and they live in many different part of the city of Accra, and to ask them to attend the clinic for care is not efficient. It will be better to provide or supplement their securing of insurance so that they could access health care close to their homes and save time and attention to students and staff.
Therapeutic efficacy of dihydroartemisinin-piperaquine combination for the treatment of uncomplicated malaria in Ghana
(Frontiers in Cellular and Infection Microbiology, 2023) Abuaku, B.; Boateng, P.; Peprah, N.Y.; Asamoah, A.; Duah-Quashie, N.O.; Matrevi, S.A.; Amoako, E.O.; Quashie, N.; Owusu-Antwi, F.; Malm, K.L.; Koram, K.A.
In 2020, Dihydroartemisinin-Piperaquine (DHAP) was adopted as a second-line antimalarial for treatment of uncomplicated malaria in Ghana following a review of the country’s antimalarial medicines policy. Available data obtained in 2007 had shown PCR-uncorrected therapeutic efficacy of 93.3% using a 28- day follow-up schedule. In 2020, the standard 42-day follow-up schedule for DHAP was used to estimate efficacy levels among febrile children aged 6 months to 9 years in three malaria sentinel sites representing the three main ecological zones of the country- savannah, forest, and coastal. PCR genotyping distinguished between recrudescence and re-infection using merozoite surface protein 2 (MSP2)-specific primers for FC27 and 3D7 strains. Per protocol analyses showed day 28 efficacy of 100% in all three sentinel sites with day 42 PCR-corrected efficacy ranging between 90.3% (95% CI: 80.1 – 96.4%) in the savannah zone and 100% in the forest and coastal zones, yielding a national average of 97.0% (95% CI: 93.4 – 98.8). No day 3 parasitemia was observed in all three sites. Prevalence of measured fever (axillary temperature ≥ 37.5°C) declined from 50.0 - 98.8% on day 0 to 7.1-11.5% on day 1 whilst parasitemia declined from 100% on day 0 to 1.2 - 2.3% on day 1. Mean haemoglobin levels on days 28 and 42 were significantly higher than pretreatment levels in all three sites. We conclude that DHAP is highly efficacious in the treatment of uncomplicated malaria in Ghana. This data will serve as baseline for subsequent DHAP efficacy studies in the country