A novel small tet(T)–tet(L)–aadD-carrying #plasmid from #MRSA and #MSSA ST9 isolates of #swine origin (J Antimicrob Chemother., abstract)

[Source: Journal of Antimicrobial Chemotherapy, full page: (LINK). Abstract, edited.]

A novel small tet(T)–tet(L)–aadD-carrying plasmid from MRSA and MSSA ST9 isolates of swine origin

Nansong Jiang, Jun Li, Andrea T Feßler, Yang Wang, Stefan Schwarz, Congming Wu

Journal of Antimicrobial Chemotherapy, dkz177, https://doi.org/10.1093/jac/dkz177

Published: 03 May 2019

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Sir,

Staphylococcus aureus, especially methicillin-resistant isolates, are major pathogens of humans and animals.1 Plasmids play a key role in the dissemination of antimicrobial resistance genes within the gene pool to which staphylococci and other Firmicutes have access.2 Tetracycline is one of the most commonly used antimicrobial agents in veterinary medicine and food animal production. The tetracycline resistance gene tet(L) was often identified on plasmids of S. aureus, particularly among those of livestock-associated MRSA (LA-MRSA) of ST398.3 In contrast, the tetracycline resistance gene tet(T) has only been reported in a few streptococcal and enterococcal strains.4 As…

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Keywords: Antibiotics; Drugs Resistance; Staphylococcus aureus; MRSA; Tetracycline; Pigs.

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Giuseppe Michieli

I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum (FluTrackers.com) in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.