Browsing by Author "El-Duah, Philip"

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    Burden of respiratory viral infections among inmates of a Ghanaian prison
    (Research Gate Publication, 2019-09-08) Sylverken, Augustina Angelina; El-Duah, Philip; Owusu, Michael; Yeboah, Richmond; Kwarteng, Alexander; Ofori, Linda; Gorman, Richmond; Obiri-Danso, Kwasi; Owusu-Dabo, Ellis; 0000-0002-7691-914X; 0000-0003-1671-0755; 0000-0003-1671-0755; 0000-0002-2765-6179; 0000-0002-0893-2908; 0000-0002-6831-3375; 0000-0002-5497-1684; 0000-0003-4232-4292
    Respiratory viral infections are important causes of morbidity and mortality worldwide. Information on circulating respiratory viruses among prisoners is lacking, although this is of public health importance and knowledge would assist in putting in place preventive measures to forestall disease outbreaks. The aim of this study therefore was to get the footprint of such diseases that have epidemic potential to be described and quantified for control. Prisoners on remand numbering 203 in a prison in Kumasi, the Ashanti Regional capital, were interviewed using prevalidated questionnaire, nasopharyngeal samples taken and screened by real-time PCR for common respiratory viruses in February, 2018. Of the total number of 203 participants enrolled, majority were males (n = 198, 97.54%). The modal age unsurprisingly was in the active working class of 18 to 35 years (n = 155, 76.36%) with 48 (23.65%) of participants older than 35 years. Inmates reported nasal congestion (n = 83, 40.89%), cough with or without pharyngitis (n =108, 53.20%) and fever (n = 74, 39.48%). Viruses detected in throat samples were Infl uenza A (n = 1, 0.49%) and Rhinovirus (n = 8, 3.94%). There was no statistically significant association between respiratory virus positivity and age (p = 0.118), gender (p > 0.900), duration of incarceration (p = 0.239) and reported symptoms (p = 0.724). The prison population may have a lower prevalence of respiratory viruses circulating in them. This may be dominated by those with high antigenic diversity.
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    Infl uenza outbreak among students in Ghana: a report from three time points
    (Research Gate Publication, 2020-09-17) Sylverken, Augustina Angelina; Owusu, Michael; Yeboah, Richmond; El-Duah, Philip; Gorman, Richmond; Bonney, Joseph Kofi; Aryeetey, Sherihane; Adu, Kofi; et. al..; 0000-0002-7691-914X; 0000-0001-5066-150X; 0000-0002-2765-6179; 0000-0003-1671-0755; 0000-0002-6831-3375
    Background: Influenza viruses are known to be responsible for a number of respiratory disease outbreaks worldwide. While there exists documented information on influenza which allows for effective strategic preparedness activities in industrialized countries, the same cannot be said of developing and underdeveloped countries. It therefore behoves on developing countries to document information on circulating strains of influenza. Such information will enable prioritization of prevention and more targeted preparedness strategies. In this paper, we report on three different outbreaks of Influenza A among Ghanaian students in December 2017, May 2019 and December 2019 in the Ashanti region of Ghana. Methods: Throat or nasal samples were collected from all students who presented with signs and symptoms of fl u with flocked swabs, stored in RNAlater and transported to the laboratories of Kumasi Centre for Collaborative Research (KCCR) at ambient temperature. Following viral RNA extraction, detection of viral nucleic acid of both influenza A and its subtypes including H1N1 and H3N2 was done by real-time reverse transcription Polymerase Chain Reaction (RT-PCR). Results: A total of 112 samples were taken. An overall Influenza A prevalence of 51.8% (95% CI = 42.1-61.3) was recorded during the three outbreak time points. Of these, 11 (19.0%) were confirmed to be H1N1 (pdm09) and 47 (81.0%) were H3N2 strains. All the 11 H1N1 (pdm09) were identified during the first outbreak. The H3N2 strains were identified during the second and third outbreaks in May 2019 and December 2019 respectively. Our results show that influenza A virus activity was higher during the months of November and December compared to May. Age, contact with infected subjects, temperature, fever within the last 24 hours and headaches showed signifi cant variations (p-value <0.01) with respect to influenza A. Wald’s test revealed that subjects presenting with headaches had about 5 times odds (95%CI = 1.4-17.7) for infl enza A infection compared to subjects without headache (p = 0.014). Conclusion: Our study provides epidemiological information to better understand the incidence and burden of influenza to allow for prioritisation of prevention and control strategies. Such information would aid in controlling and preparing for future influenza epidemics.
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    Sero-epidemiology of human coronaviruses in three rural communities in Ghana
    (Pan African Medical Journal, 2021) Owusu, Michael; Sylverken, Augustina Angelina; El-Duah, Philip; Acheampong, Godfred; Mutocheluh,, Mohammed; Adu-Sarkodie, Yaw; 0000-0001-5066-150X; 0000-0002-7691-914X; 0000-0003-1671-0755; 0000-0003-2495-9235; 0000-0002-1396-5085; 0000-0003-2093-1534
    Introduction: acute respiratory tract infections (ARIs) are responsible for significant proportions of illnesses and deaths annually. Most of ARIs are of viral etiology, with human coronaviruses (HCoVs) playing a key role. This study was conducted prior to the outbreak of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) to provide evidence about the sero-epidemiology of HCoVs in rural areas of Ghana. Methods: this was a cross sectional study conducted as part of a large epidemiological study investigating the occurrence of respiratory viruses in 3 rural areas of Ghana; Buoyem, Kwamang and Forikrom. Serum samples were collected and tested for the presence of IgGantibodies to three HCoVs; HCoV-229E, HCoV OC43 and HCoV-NL63 using immunofluorescence assay. Results: of 201 subjects enrolled into the study, 97 (48.3%) were positive for all three viruses. The most prevalent virus was HCoV-229E (23%; 95% CI: 17.2 - 29.3), followed by HCoV-OC43 (17%; 95% CI: 12.4 - 23.4), then HCoV-NL63 (8%, 95% CI: 4.6 - 12.6). Subjects in Kwamang had the highest sero-prevalence for HCoV-NL63 (68.8%). human coronaviruses-229E (41.3%) and HCoV-OC43 (45.7%) were much higher in Forikrom compared to the other study areas. There was however no statistical difference between place of origin and HCoVs positivity. Although blood group O+ and B+ were most common among the recruited subjects, there was no significant association (p = 0.163) between blood group and HCoV infection. Conclusion: this study reports a 48.3% sero-prevalence of HCoVs (OC43, NL63 and 229E) among rural communities in Ghana. The findings provide useful baseline data that could inform further sero-epidemiological studies on SARS-CoV-2 in Africa.