• No results found

Carbapenemase-Producing Enterobacteriaceae inWastewater-Associated Aquatic Environments

N/A
N/A
Protected

Academic year: 2021

Share "Carbapenemase-Producing Enterobacteriaceae inWastewater-Associated Aquatic Environments"

Copied!
1
0
0

Loading.... (view fulltext now)

Full text

(1)

Örebro Studies in Life Science 16 I ÖREBRO 2020

2020

FA

IS

AL

AH

MA

D K

H

AN

C

arb

ap

en

em

as

e-pr

od

uc

ing

En

te

ro

ba

cte

ria

ce

ae

in

th

e E

nv

ir

on

m

en

t

faisal ahmad khan received his Bachelor of Science degree in Microbiology from Hazara University, Pakistan in 2010. He completed his Master of Science in Biology with a specialization in Molecular Medical Biology in 2012 from Örebro University, Sweden. He has worked as Visiting Researcher at Life Science Center at Örebro University in 2014. He has been a doctoral student at Örebro University since 2015. In 2018, he was awarded a Licentiate degree in Biology.

Treatment of severe infections in critically ill patients is becoming a major challenge due to the omnipresence of multidrug-resistant (MDR) Gram-negative bacteria. Carbapenem antibiotics have now been considered as one of the few safer options for the treatment of infections caused by MDR bacteria. However, the global emergence of carbapenemase-producing Enterobacteriaceae (CPE) in recent years seriously threatens the efficacy of carbapenem antibiotics. The World Health Organization (WHO) has listed carbapenem-resistant

Entero-bacteriaceae in the “priority 1” group for which discovery and development of

new antibiotics are critically required. The environments such as urban rivers and lakes are exposed to the pathogens, antibiotic resistance genes (ARGs) and other contaminants of human origin and can play a significant role in further spread of antibiotic resistance. This study characterized the CPE and ARGs present in the wastewaters and associated river and lake waters in Örebro, Sweden. The study revealed that some CPE are persistent in these environments and can potentially be widespread in the community. The study also showed that long-term exposure to river water impacted by a complex mixture of anthropogenic contaminants and increased environmental temperature may induce genetic changes in the environmental microbiome, generating novel resistant variants at accelerated rates that may pose a significant threat to human health. issn 1653-3100 isbn 978-91-7529-334-9

Carbapenemase-Producing

Enterobacteriaceae in

Wastewater-Associated

Aquatic Environments

FAISAL AHMAD KHAN

Biology

Doctoral Dissertation

FA

IS

AL

AH

MA

D K

H

AN

C

arb

ap

en

em

as

e-pr

od

uc

ing

En

te

ro

ba

cte

ria

ce

ae

in

th

e E

nv

ir

on

m

en

t

References

Related documents

Some of the parameters show clear trends with distance as the river flows through Zomba city, with generally poorer water quality downstream that upstream of the studied

In this study, we tested to what extent bioconcentration of an anxiolytic drugs (temazepam and oxazepam) is affected by two temperature regimes (10 and 20 ◦ C) and how the

The concentrations were up to 10 times higher than in grey seals (Halichoerus grypus) and ringed seals (Phoca hispida) from the Baltic (Kallenborn et al., 2004)..

In this paper, age- and time-related radiation-induced effects were exam- ined in thyroid and plasma samples from young and adult rats 3-9 months after injection with 50 kBq 131

In Paper I, late dose related effects on the transcriptome and proteome in thyroid and plasma from young rats are investigated. In Paper II, the age and time related effects on

Chapter 5 describes the different findings from the papers related to environmental fate processes of ENP like aggregation, natural organic matter (NOM)

Engineered nanoparticles (ENP) can be of environmental concern, both due to the possible hazardous effects but also due to the differences in properties compared

Keywords: Antibiotic resistance evolution, ESBL, Klebsiella, Multidrug, VIM Faisal Ahmad Khan, School of Science and Technology Örebro University, SE-701 82 Örebro, Sweden,