Antimicrobial resistance and molecular characterization of methicillin-resistant Staphylococcus aureus from two pig farms : longitudinal study of LA-MRSA

Golob, Majda (avtor), Pate, Mateja (avtor), Kušar, Darja (avtor), Zajc, Urška (avtor), Papić, Bojan (avtor), Ocepek, Matjaž (avtor), Zdovc, Irena (avtor), Avberšek, Jana (avtor)

Pigs were identified as the most important reservoir of livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA), mostly belonging to the emergent zoonotic clonal complex (CC) 398. Here, we investigated the presence of MRSA in sows and piglets over a period of several months in two pig farms (intensive farm A and family-run farm B). Isolates underwent antimicrobial susceptibility testing, PCR characterization and spa typing. We collected 280 samples, namely 206 nasal swabs from pigs and 74 environmental samples from pig housings at 12 consecutive time points. A total of 120/161 (74.5%) and 75/119 (63.0%) samples were MRSA-positive in farms A and B, respectively. All isolates harbored mecA but lacked mecC and PVL-encoding genes. The identified spa types (t571, t034, t1250 and t898 in farm A, t1451 and t011 in farm B) were indicative of CC398. Antimicrobial resistance patterns (all multidrug resistant in farm A, 57.2% in farm B) depended on the farm, suggesting the impact of farm size and management practices on the prevalence and characteristics of MRSA. Due to the intermittent colonization of pigs and the high contamination of their immediate environment, MRSA status should be determined at the farm level when considering preventive measures or animal trade between farms.

• Jezik: Angleški jezik
• Ključne besede: livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA), pigs, multidrug resistance (MDR), spa typing, longitudinal study
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: VF - Veterinarska fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Datum objave: 02.11.2022
• Leto izida: 2022
• Št. strani: 14 str.
• Številčenje: Vol. 11, no. 11, art. 1532
• PID: 20.500.12556/RUL-142358
• UDK: 636.09:579
• ISSN pri članku: 2079-6382
• DOI: 10.3390/antibiotics11111532
• COBISS.SI-ID: 127705091
• Datum objave v RUL: 02.11.2022

Gradivo je del revije

• Naslov: Antibiotics
• Skrajšan naslov: Antibiotics
• Založnik: MDPI
• ISSN: 2079-6382
• COBISS.SI-ID: 522975769

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 02.11.2022

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: J4-6810
• Naslov: Rejne živali kot rezervoar okužb z bakterijama Clostridium difficile in MRSA pri ljudeh

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P4-0092
• Naslov: Zdravje živali, okolje in varna hrana