User profiles for Teemu V.S. Kallonen

Teemu Kallonen

Senior Scientist, Clinical Microbiolgy, Turku University Hospital
Verified email at tyks.fi
Cited by 1624

[HTML][HTML] Description of Klebsiella spallanzanii sp. nov. and of Klebsiella pasteurii sp. nov.

…, M Corbella, HA Thorpe, TVS Kallonen… - Frontiers in …, 2019 - frontiersin.org
Klebsiella oxytoca causes opportunistic human infections and post-antibiotic haemorrhagic
diarrhea. This Enterobacteriaceae species is genetically heterogeneous and is currently …

Bordetella pertussis strain variation and evolution postvaccination

T Kallonen, Q He - Expert review of vaccines, 2009 - Taylor & Francis
Bordetella pertussis is a Gram-negative bacterium that causes pertussis or whooping cough
in humans. The incidence of pertussis has increased in young infants, adolescents and …

Systematic longitudinal survey of invasive Escherichia coli in England demonstrates a stable population structure only transiently disturbed by the emergence of …

T Kallonen, HJ Brodrick, SR Harris, J Corander… - Genome …, 2017 - genome.cshlp.org
Escherichia coli associated with urinary tract infections and bacteremia has been intensively
investigated, including recent work focusing on the virulent, globally disseminated, multidrug…

[HTML][HTML] A large-scale genomic snapshot of Klebsiella spp. isolates in Northern Italy reveals limited transmission between clinical and non-clinical settings

HA Thorpe, R Booton, T Kallonen, MJ Gibbon… - Nature …, 2022 - nature.com
The Klebsiella group, found in humans, livestock, plants, soil, water and wild animals, is
genetically and ecologically diverse. Many species are opportunistic pathogens and can …

Diversification of colonization factors in a multidrug-resistant Escherichia coli lineage evolving under negative frequency-dependent selection

A McNally, T Kallonen, C Connor, K Abudahab… - MBio, 2019 - Am Soc Microbiol
Escherichia coli is a major cause of bloodstream and urinary tract infections globally. The
wide dissemination of multidrug-resistant (MDR) strains of extraintestinal pathogenic E. coli (…

[HTML][HTML] Whole genome sequencing of ESBL-producing Escherichia coli isolated from patients, farm waste and canals in Thailand

C Runcharoen, KE Raven, S Reuter, T Kallonen… - Genome medicine, 2017 - Springer
Background Tackling multidrug-resistant Escherichia coli requires evidence from One Health
studies that capture numerous potential reservoirs in circumscribed geographic areas. …

[HTML][HTML] Dynamics of intestinal multidrug-resistant bacteria colonisation contracted by visitors to a high-endemic setting: a prospective, daily, real-time sampling study

…, A Neumayr, C Hatz, A Snaith, T Kallonen… - The Lancet …, 2021 - thelancet.com
Background Antimicrobial resistance is highly prevalent in low-income and middle-income
countries. International travel contributes substantially to the global spread of intestinal …

[HTML][HTML] Emergence of ceftazidime-avibactam-resistant Klebsiella pneumoniae during treatment, Finland, December 2018

…, I Koivula, H Ilmavirta, S Puranen, T Kallonen… - …, 2019 - eurosurveillance.org
In December 2018, a ceftazidime-avibactam (CAZ-AVI)-resistant KPC-2-producing Klebsiella
pneumoniae strain was isolated in Finland. CAZ-AVI resistance was observed 34 days …

[HTML][HTML] Whole-genome sequencing reveals the effect of vaccination on the evolution of Bordetella pertussis

…, Y Tan, L Feng, T Kallonen… - Scientific reports, 2015 - nature.com
Herd immunity can potentially induce a change of circulating viruses. However, it remains
largely unknown that how bacterial pathogens adapt to vaccination. In this study, Bordetella …

[HTML][HTML] Longitudinal genomic surveillance of multidrug-resistant Escherichia coli carriage in a long-term care facility in the United Kingdom

HJ Brodrick, KE Raven, T Kallonen, D Jamrozy… - Genome medicine, 2017 - Springer
Background Residents of long-term care facilities (LTCF) may have high carriage rates of
multidrug-resistant pathogens, but are not currently included in surveillance programmes for …