Browsing Bergen Open Research Archive by Author "Tellevik, Marit Gjerde"
Now showing items 1-17 of 17
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Antimicrobial resistance predicts death in Tanzanian children with bloodstream infections: a prospective cohort study
Blomberg, Bjørn; Manji, Karim P.; Urassa, Willy K.; Tamim, Bushir S.; Mwakagile, Davis S. M.; Jureen, Roland; Msangi, Viola; Tellevik, Marit Gjerde; Holberg-Petersen, Mona; Harthug, Stig; Maselle, Samwel Y.; Langeland, Nina (Peer reviewed; Journal article, 2007-05-22)Background: Bloodstream infection is a common cause of hospitalization, morbidity and death in children. The impact of antimicrobial resistance and HIV infection on outcome is not firmly established. Methods: We assessed ... -
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 ... -
Detection of a broad range of Leishmania species and determination of parasite load of infected mouse by real-time PCR targeting the arginine permease gene AAP3
Tellevik, Marit Gjerde; Müller, Karl Erik; Rebbestad, Karen; Nerland, Audun Helge (Peer reviewed; Journal article, 2014-09)Leishmaniasis is one of the world's most neglected infectious diseases, affecting around 12 million people and more than 350 million at risk of infection. The clinical picture varies from self-healing cutaneous lesions to ... -
Escherichia marmotae—a Human Pathogen Easily Misidentified as Escherichia coli
Sivertsen, Audun; Dyrhovden, Ruben; Tellevik, Marit Gjerde; Bruvold, Torbjørn Sæle; Nybakken, Eirik Jovall; Skutlaberg, Dag Harald; Skarstein, Ingerid; Kommedal, Øyvind (Journal article; Peer reviewed, 2022)We hereby present the first descriptions of human-invasive infections caused by Escherichia marmotae, a recently described species that encompasses the former “Escherichia cryptic clade V.” We describe four cases, one acute ... -
Experimental infection of healthy volunteers with enterotoxigenic Escherichia coli wild-type strain TW10598 in a hospital ward
Skrede, Steinar; Steinsland, Hans; Sommerfelt, Halvor; Aase, Audun; Brandtzaeg, Per; Langeland, Nina; Cox, Rebecca Jane; Sævik, Marianne; Wallevik, Marita; Skutlaberg, Dag Harald; Tellevik, Marit Gjerde; Sack, David A.; Nataro, James P.; Guttormsen, Anne Berit (Peer reviewed; Journal article, 2014-09-04)Background: Enterotoxigenic Escherichia coli (ETEC) is an important cause of childhood diarrhea in resource-limited regions. It is also an important cause of diarrhea in travellers to these areas. To evaluate the protective ... -
Experimental Infection of Human Volunteers with the Heat-Stable Enterotoxin-Producing Enterotoxigenic Escherichia coli Strain TW11681
Sakkestad, Sunniva Todnem; Steinsland, Hans; Skrede, Steinar; Kleppa, Elisabeth; Lillebø, Kristine; Sævik, Marianne; Søyland, Hanne; Heien, Astrid Rykkje; Tellevik, Marit Gjerde; Barry, Eileen M.; Sommerfelt, Halvor; Hanevik, Kurt (Peer reviewed; Journal article, 2019-06-22)Infection with enterotoxigenic Escherichia coli (ETEC) producing the heat-stable enterotoxin (ST) is one of the most important causes of childhood diarrhoea in low- and middle-income countries. Here, we undertook a controlled ... -
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 ... -
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 ... -
Leishmaniasis i Norge
Muller, Karl Erik; Blomberg, Bjørn; Tellevik, Marit Gjerde; Jensenius, Mogens; Fladeby, Cathrine; Lier, Tore; Sand, Geir; Hannula, Raisa; Langeland, Nina; Mørch, Kristine (Journal article; Peer reviewed, 2021)Bakgrunn: Leishmaniasis er en sjelden, men potensielt alvorlig tropisk infeksjonssykdom. Norske klinikere er lite kjent med diagnostikk og behandling av denne sykdommen. Formålet med studien var å undersøke forekomst, ... -
Microbiological diagnosis of pleural infections: a comparative evaluation of a novel syndromic real-time PCR panel
Kommedal, Øyvind; Eagan, Tomas Mikal Lind; Fløtten, Øystein; Leegaard, Truls Michael; Siljan, William Ward; Fardal, Hilde; Bø, Bjørnar; Grøvan, Fredrik; Larssen, Kjersti Wik; Kildahl-Andersen, Arne; Hjetland, Reidar; Tilseth, Rune Hørgård; Hareide, Sølvi Kristine Øyen; Tellevik, Marit Gjerde; Dyrhovden, Ruben (Journal article; Peer reviewed, 2024)Current microbial diagnostics for pleural infections are insufficient. Studies using 16S targeted next-generation sequencing report that only 10%–16% of bacteria present are cultured and that 50%–78% of pleural fluids ... -
No asymptomatic malaria parasitaemia found among 108 young children at one health facility in Dar es Salaam, Tanzania
Strøm, Gro Elizabeth Ann; Tellevik, Marit Gjerde; Fataki, Maulidi; Langeland, Nina; Blomberg, Bjørn (Peer reviewed; Journal article, 2013-11-14)Background: Asymptomatic malaria parasitaemia has been reported in areas with high malaria transmission. It may serve as a reservoir for continued transmission, and furthermore complicates diagnostics, as not all individuals ... -
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 ... -
Pleural Empyema Caused by Streptococcus intermedius and Fusobacterium nucleatum: A Distinct Entity of Pleural Infections
Dyrhovden, Ruben; Eagan, Tomas Mikal Lind; Fløtten, Øystein; Siljan, William Ward; Leegaard, Truls Michael; Bø, Bjørnar; Fardal, Hilde; Grøvan, Fredrik; Kildahl-Andersen, Arne; Larssen, Kjersti Wik; Tilseth, Rune; Hjetland, Reidar; Løes, Sigbjørn Suk; Lindemark, Frode; Tellevik, Marit Gjerde; Breistein, Rebecca Irene; Kommedal, Øyvind (Journal article; Peer reviewed, 2023)Background Many community-acquired pleural infections are caused by facultative and anaerobic bacteria from the human oral microbiota. The epidemiology, clinical characteristics, pathogenesis, and etiology of such ... -
Prevalence of Cryptosporidium parvum/hominis, Entamoeba histolytica and Giardia lamblia among Young Children with and without Diarrhea in Dar es Salaam, Tanzania
Tellevik, Marit Gjerde; Moyo, Sabrina John; Blomberg, Bjørn; Hjøllo, Torunn; Maselle, Samuel Y; Langeland, Nina; Hanevik, Kurt (Peer reviewed; Journal article, 2015-10-09)Background: Although enteroparasites are common causes of diarrheal illness, few studies have been performed among children in Tanzania. This study aimed to investigate the prevalence of Cryptosporidium parvum/hominis, ... -
Randomized clinical trial to assess whether the duration of cotrimoxazole preventive therapy in HIV patients with CD4 counts >350 CD4 cells/μL by antiretroviral treatment influences the rate of carriage of multidrug-resistant bacteria. Study protocol
Blomberg, Bjørn; Aboud, Said; Aamodt, Håvard; Manyahi, Joel; Moyo, Sabrina J.; Tellevik, Marit Gjerde; Langeland, Nina (Report, 2016-09-20)Cotrimoxazole preventive therapy (CPT) is recommended for prevention of morbidity and mortality due to Pneumocystis jirovecii pneumonia (PJP) and other infections in HIV positive patients with low immunity. In industrial ... -
Soluble markers of neutrophil, T-cell and monocyte activation are associated with disease severity and parasitemia in falciparum malaria
Otterdal, Kari; Berg, Åse; Michelsen, Annika; Patel, Sam; Tellevik, Marit Gjerde; Haanshuus, Christel Gill; Fevang, Børre; Aukrust, Pål; Langeland, Nina; Ueland, Thor (Peer reviewed; Journal article, 2018-12-18)BACKGROUND: The immune response during P. falciparum infection is a two-edged sword, involving dysregulation of the inflammatory responses with several types of immune cells participating. Here we examined T-cell, ...