Publications by authors named "Martina Giacomelli"
Poultry are the main reservoir for thermophilic Campylobacter spp., which is the most common causative agent of human bacterial gastroenteritis. The epidemiology of Campylobacter in poultry, particularly in turkeys, is not completely understood.
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- The study investigated the presence of class 1 and 2 integrons in avian pathogenic E. coli (APEC) from various poultry species in northern Italy, focusing on their relationship with antibiotic resistance.
- About 55% of the APEC strains contained integrons, with a notable presence of gene variants related to resistance against streptomycin and trimethoprim.
- High resistance rates were found for triple sulphonamides, streptomycin, and sulfamethoxazole plus trimethoprim, raising concerns for the poultry industry due to the significance of these antimicrobials in poultry treatment.
This paper reports the multilocus sequence typing (MLST) of 57 C. jejuni and C. coli isolates from humans and chickens in Italy and the identification of 17 new sequence types (STs).
View Article and Find Full Text PDFThis study was aimed at assessing the antimicrobial resistance (AMR) of Campylobacter isolates from broilers and turkeys reared in industrial farms in Northern Italy, given the public health concern represented by resistant campylobacters in food-producing animals and the paucity of data about this topic in our country. Thirty-six Campylobacter jejuni and 24 Campylobacter coli isolated from broilers and 68 C. jejuni and 32 C.
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- The study investigated multidrug-resistant Escherichia coli from lagomorphs in Northern Italy, focusing on class 1 and 2 integrons and plasmid-mediated quinolone resistance (PMQR) genes between 2006 and 2008.
- It found that 69 strains contained class 1 integrons, while no class 2 integrons were detected, and identified five different gene cassettes.
- Notably, 15% of the isolates carried the oqxAB gene, predominantly in farm rabbits, suggesting that lagomorphs could be a source of PMQR E. coli for humans.
Poultry are recognized as a main reservoir of thermophilic campylobacters, but few studies have been carried out on commercial meat turkeys. This study was aimed at assessing the occurrence of thermophilic Campylobacter spp., their genetic diversity, and the trend of the infection during the whole production cycle of three turkey flocks from different farms in Northern Italy.
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