Browsing Bergen Open Research Archive by Author "Moyo, Sabrina John"
Now showing items 1-20 of 27
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Age specific aetiological agents of diarrhoea in hospitalized children aged less than five years in Dar es Salaam, Tanzania
Moyo, Sabrina John; Njølstad, Gro; Matee, Mecky I.; Kitundu, Jesse; Myrmel, Helge; Mylvaganam, Haima; Maselle, Samwel Y.; Langeland, Nina (Peer reviewed; Journal article, 2011-02-23)Background This study aimed to determine the age-specific aetiologic agents of diarrhoea in children aged less than five years. The study also assessed the efficacy of the empiric treatment of childhood diarrhoea using ... -
Bacteraemia, Malaria, and Case Fatality Among Children Hospitalized With Fever in Dar es Salaam, Tanzania
Moyo, Sabrina John; Manyahi, Joel; Blomberg, Bjørn; Tellevik, Marit Gjerde; Masoud, Nahya Salim; Aboud, Said; Manji, Karim; Roberts, Adam P.; Hanevik, Kurt; Mørch, Kristine; Langeland, Nina (Journal article; Peer reviewed, 2020)Background: Febrile illness is the commonest cause of hospitalization in children <5 years in sub-Saharan Africa, and bacterial bloodstream infections and malaria are major causes of death. Methods: From March 2017 to ... -
Challenges in diagnosing pediatric malaria in Dar es Salaam, Tanzania
Strøm, Gro Elizabeth Ann; Haanshuus, Christel Gill; Moyo, Sabrina John; Fataki, Maulidi; Langeland, Nina; Blomberg, Bjørn (Conference poster, 2012-10-15) -
A comparison of risk factors for cryptosporidiosis and non-cryptosporidiosis diarrhoea: A case-case-control study in Ethiopian children
Johansen, Øystein Haarklau; Abdissa, Alemseged; Zangenberg, Mike; Mekonnen, Zeleke; Eshetu, Beza; Sharew, Bizuwarek; Moyo, Sabrina John; Sommerfelt, Halvor; Langeland, Nina; Robertson, Lucy; Hanevik, Kurt (Journal article; Peer reviewed, 2022)Background: Cryptosporidiosis is a major cause of diarrhoea in young children in low-and-middle-income countries. New interventions should be informed by evidence pertaining to risk factors and their relative importance. ... -
First identification of bla NDM-5 producing Escherichia coli from neonates and a HIV infected adult in Tanzania
Manyahi, Joel; Moyo, Sabrina John; Kibwana, Upendo; Goodman, Richard N.; Allman, Ellie; Hubbard, Alasdair T.M.; Blomberg, Bjørn; Langeland, Nina; Roberts, Adam P. (Journal article; Peer reviewed, 2022)Introduction. Carbapenem-resistant members of the family Enterobacteriaceae are emerging as a global public-health threat and cause substantial challenges in clinical practice. Gap Statement. There is a need for increased ... -
Fluoroquinolone resistance among fecal extended spectrum βeta lactamases positive Enterobacterales isolates from children in Dar es Salaam, Tanzania
Kibwana, Upendo O.; Manyahi, Joel; Sandnes, Helene Heitmann; Blomberg, Bjørn; Mshana, Stephen E.; Langeland, Nina; Roberts, Adam P.; Moyo, Sabrina John (Journal article; Peer reviewed, 2023-03-07)Background: Fluoroquinolones have been, and continue to be, routinely used for treatment of many bacterial infections. In recent years, most parts of the world have reported an increasing trend of fluoroquinolone resistant ... -
Gastrointestinal colonization of extended-spectrum beta-lactamase-producing bacteria among children below five years of age hospitalized with fever in Dar es Salaam, Tanzania
Kibwana, Upendo O.; Manyahi, Joel; Sandnes, Helene Heitmann; Blomberg, Bjørn; Mshana, Stephen E.; Langeland, Nina; Moyo, Sabrina John (Journal article; Peer reviewed, 2022)Objectives: Gastrointestinal colonization of extended-spectrum β-lactamase-producing Enterobacteriaceae (ESBL-PE) is of concern because prior colonization increases risk for subsequent infections. To date, the link between ... -
Genetic determinants of macrolide and tetracycline resistance in penicillin non-susceptible Streptococcus pneumoniae isolates from people living with HIV in Dar es Salaam, Tanzania
Manyahi, Joel; Moyo, Sabrina John; Langeland, Nina; Blomberg, Bjørn (Journal article; Peer reviewed, 2023-02-20)Background: Over one million yearly deaths are attributable to Streptococcus pneumoniae and people living with HIV are particularly vulnerable. Emerging penicillin non-susceptible Streptococcus pneumoniae (PNSP) challenges ... -
Genetic diversity of circulating rotavirus strains in Tanzania prior to the introduction of vaccination
Moyo, Sabrina John; Blomberg, Bjørn; Hanevik, Kurt; Kommedal, Øyvind; Vainio, Kirsti; Maselle, Samwel Y.; Langeland, Nina (Peer reviewed; Journal article, 2014-05-20)Background: Tanzania currently rolls out vaccination against rotavirus-diarrhea, a major cause of child illness and death. As the vaccine covers a limited number of rotavirus variants, this study describes the molecular ... -
High prevalence of faecal carriage of ESBL-producing enterobacteriaceae among children in Dar es Salaam, Tanzania
Tellevik, Marit Gjerde; Blomberg, Bjørn; Kommedal, Øyvind; Maselle, Samuel Y; Langeland, Nina; Moyo, Sabrina John (Peer reviewed; Journal article, 2016-12-09)Background: Faecal carriage of ESBL-producing bacteria is a potential risk for transmission and infection. Little is known about faecal carriage of antibiotic resistance in Tanzania. This study aimed to investigate the ... -
High prevalence of fecal carriage of extended spectrum β-lactamase-producing enterobacteriaceae among newly HIV-diagnosed adults in a community setting in Tanzania
Manyahi, Joel; Moyo, Sabrina John; Tellevik, Marit Gjerde; Langeland, Nina; Blomberg, Bjørn (Journal article; Peer reviewed, 2020)Colonization in HIV-infected populations with extended-spectrum β-lactamase-producing Enterobacteriaceae (ESBL-PE) is particularly worrisome in low-income settings. This study describes the prevalence of ESBL-PE carriage ... -
High rate of antimicrobial resistance and multiple mutations in the dihydrofolate reductase gene among Streptococcus pneumoniae isolated from HIV-infected adults in a community setting in Tanzania
Manyahi, Joel; Moyo, Sabrina John; Aboud, Said; Langeland, Nina; Blomberg, Bjørn (Journal article; Peer reviewed, 2020)Objectives: The aim of this study was to characterize molecular mechanisms of resistance to trimethoprim and other antibiotics in Streptococcus pneumoniae isolates from HIV-infected adults in Dar es Salaam, Tanzania. Methods: ... -
Horizontal plasmid transfer among klebsiella pneumoniae isolates is the key factor for dissemination of extended-spectrum β-lactamases among children in Tanzania
Pedersen, Torunn Annie; Tellevik, Marit Gjerde; Kommedal, Øyvind; Lindemann, Paul Christoffer; Moyo, Sabrina John; James Peter, Jessin Janice; Blomberg, Bjørn; Samuelsen, Ørjan; Langeland, Nina (Journal article; Peer reviewed, 2020)Increased knowledge about the role of horizontal gene transfer is key to improve our understanding of the spread of antimicrobial resistance (AMR) in human populations. We therefore studied the dissemination of the blaCTX-M-15 ... -
Identification of diarrheagenic Escherichia coli isolated from infants and children in Dar es Salaam, Tanzania
Moyo, Sabrina John; Maselle, Samwel Y.; Matee, Mecky I.; Langeland, Nina; Mylvaganam, Haima (Peer reviewed; Journal article, 2007-08-09)Background: Relatively few studies have been done in Tanzania to detect and classify diarrheagenic Escherichia coli (DEC) strains among children with diarrhea. This study aimed at investigating DEC among children in Dar ... -
Molecular characterisation of the first New Delhi metallo-β-lactamase 1-producing Acinetobacter baumannii from Tanzania
Moyo, Sabrina John; Manyahi, Joel; Hubbard, Alasdair T. M; Byrne, Rachel L; Masoud, Nahya Salim; Aboud, Said; Manji, Karim; Blomberg, Bjørn; Langeland, Nina; Roberts, Adam P. (Journal article; Peer reviewed, 2021)Background We aimed to characterise the genetic determinants and context of two meropenem-resistant clinical isolates of Acinetobacter baumannii isolated from children hospitalised with bloodstream infections in Dar es ... -
Oocyst Shedding Dynamics in Children with Cryptosporidiosis: a Prospective Clinical Case Series in Ethiopia
Johansen, Øystein Haarklau; Abdissa, Alemseged; Bjørang, Ola; Zangenberg, Mike; Sharew, Bizuwarek; Alemu, Yonas; Moyo, Sabrina John; Mekonnen, Zeleke; Langeland, Nina; Robertson, Lucy; Hanevik, Kurt (Journal article; Peer reviewed, 2022)Knowledge on the duration of Cryptosporidium oocyst shedding, and how shedding may be affected by subtypes and clinical parameters, is limited. Reduced transmission may be a secondary benefit of cryptosporidiosis treatment ... -
PCR targeting Plasmodium mitochondrial genome of DNA extracted from dried blood on filter paper compared to whole blood
Strøm, Gro Elizabeth Ann; Moyo, Sabrina John; Fataki, Maulidi; Langeland, Nina; Blomberg, Bjørn (Peer reviewed; Journal article, 2014-04-07)Background: Monitoring mortality and morbidity attributable to malaria is paramount to achieve elimination of malaria. Diagnosis of malaria is challenging and PCR is a reliable method for identifying malaria with high ... -
Plasma parasitemia as assessed by quantitative PCR in relation to clinical disease severity in African adults with falciparum malaria with and without HIV co-infection
Berg, Åse; Patel, Sam; Tellevik, Marit Gjerde; Haanshuus, Christel Gill; Dalen, Ingvild; Otterdal, Kari; Ueland, Thor; Moyo, Sabrina John; Aukrust, Pål; Langeland, Nina (Journal article; Peer reviewed, 2020)Purpose When considering malaria disease severity, estimation of parasitemia in erythrocytes is important, but sometimes misleading, since the infected erythrocytes may be sequestered in peripheral capillaries. In African ... -
Predominance of multidrug-resistant Salmonella Typhi genotype 4.3.1 with low-level ciprofloxacin resistance in Zanzibar
Onken, Annette; Moyo, Sabrina John; Miraji, Mohammed Khamis; Bohlin, Jon; Marijani, Msafiri; Manyahi, Joel; Kibwana, Kibwana Omar; Müller, Fredrik; Jenum, Pål; Abeid, Khamis Ali; Reimers, Marianne; Langeland, Nina; Mørch, Kristine; Blomberg, Bjørn (Journal article; Peer reviewed, 2024-04-17)Background: Typhoid fever is a common cause of febrile illness in low- and middle-income countries. While multidrug-resistant (MDR) Salmonella Typhi (S. Typhi) has spread globally, fluoroquinolone resistance has mainly ... -
Predominance of PVL-negative community-associated methicillin-resistant Staphylococcus aureus sequence type 8 in newly diagnosed HIV-infected adults, Tanzania
Manyahi, Joel; Moyo, Sabrina John; Aboud, Said; Langeland, Nina; Blomberg, Bjørn (Journal article; Peer reviewed, 2021)Difficult-to-treat infections caused by methicillin-resistant Staphylococcus aureus (MRSA) are of concern in people living with HIV infection as they are more vulnerable to infection. We aimed to identify molecular ...