salmonella is one of the most important zoonotic pathogens with many virulence factors playing a major role in its pathogenesis. the aims of this study were to detect spva, int2 and invc virulence genes of different salmonella serotypes isolated from various clinical animal and human sources, and to investigate antibiotic resistance patterns among these serotypes. using a pcr assay, a total of ...

Abstract Background Antibiotics and antibiotic resistance genes (ARGs) threaten ecological sustainability human health, especially the drinking water sources of Douhe Reservoir, which have critical significance amid their direct use by people hub flora fauna. Although antibiotics ARGs pollution in reservoirs been reported, it is no practical to only study changes (increase or decrease) abundanc...

Extracellular DNA (exDNA) is released from bacterial cells through various processes. The antibiotic resistance genes (ARGs) coded on exDNA may be horizontally transferred among bacterial communities by natural transformation. We quantitated the released/leaked tetracycline resistance gene, tet(M) over time under grazing stress by ciliates and heterotrophic nanoflagellates (HNFs), and found tha...

Antibiotic resistance poses a threat in many institutions including hospitals, meat processing facilities and other agricultural occupational entities. The goal of this research is to uncover how bacteria react environmental conditions aerosolization delineate factors that trigger expression antibiotic genes (ARGs) using the laboratory strain Escherichia coli (E. coli) MG 1655 as surrogate bact...

Antibiotic resistance in aquatic ecosystems presents an environmental health issue worldwide. Urban recipient water quality is susceptible to effluent discharges with antibiotic contaminants and needs be protected, particularly for those as sources of drinking production. Knowledge on resistome profiles downstream wastewater treatment plants allows a better understanding the extent which emerge...

Abstract Antibiotic resistance of pathogens is a serious issue that affects health. The airborne particle molecules such as (PM 2.5 , PM 10 ) spread by dust storms can increase the antibiotic in bacterial community. In this study air samples were collected and air-borne bacteria cultured on specific growth media portable sampler device (SAS). Sixty plates used through atmospheric which included...

Misuse and overuse of antibiotics have contributed to the rise antimicrobial resistance as one top public health threats. Antibiotics antibiotic genes (ARGs) are prevalent in agricultural soils due widespread application livestock organic wastes. However, information about occurrence, distribution, risk ARGs is lacking for many scenarios. In this study, based on 2225 observations from 135 indep...

Emergence of antibiotic-resistant bacteria in the aquaculture environment is a significant problem for disease control of cultured fish as well as in human public health. Conjugative mobile genetic elements (MGEs) are involved in dissemination of antibiotic resistance genes (ARGs) among marine bacteria. In the present study, we first designed a PCR targeting traI gene encoding essential relaxas...

Manure storage facilities are critical control points to reduce antibiotic resistance genes (ARGs) in swine manure slurry before the is land applied. However, little known about how exogenous chemicals entering may affect fate of ARGs. The objective this study was analyze impact six commonly used pit additives and four facility disinfectants on concentration ARGs slurry. Bench scale reactors, e...

(1) Background: The uncontrolled increase in pollutants the aquatic environment results antibiotic-resistant bacteria and antibiotic resistance genes (ARBs ARGs). overuse misuse of antibiotics is also a crucial factor for public health. (2) Methods: In this study, presence ARBs 24 from eight different classes were evaluated addition to performing statistical correlations intercorrelations. Samp...