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Human Infection of Methicillin-Susceptible Staphylococcus aureus CC398: A Review

Abstract : Staphylococcus aureus (SA) belonging to the clonal complex 398 (CC398) took a special place within the species due to its spread throughout the world. SA CC398 is broadly separated in two subpopulations: livestock-associated methicillin-resistant SA (MRSA) and human-associated methicillin-susceptible SA (MSSA). Here, we reviewed the global epidemiology of SA CC398 in human clinical infections and focused on MSSA CC398. The last common ancestor of SA CC398 was probably a human-adapted prophage φSa3-positive MSSA CC398 strain, but the multiple transmissions between human and animal made its evolution complex. MSSA and MRSA CC398 had different geographical evolutions. Although MSSA was present in several countries all over the world, it was mainly reported in China and in France with a prevalence about 20%. MSSA CC398 was frequently implicated in severe infections such as bloodstream infections, endocarditis, and bone joint infections whereas MRSA CC398 was mainly reported in skin and soft tissue. The spread of the MSSA CC398 clone is worldwide but with a heterogeneous prevalence. The prophage φSa3 played a crucial role in the adaptation to the human niche and in the virulence of MSSA CC398. However, the biological features that allowed the recent spread of this lineage are still far from being fully understood.
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Contributor : Pascal Cholley <>
Submitted on : Thursday, December 3, 2020 - 11:33:16 AM
Last modification on : Friday, December 4, 2020 - 3:22:42 AM

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Kevin Bouiller, Xavier Bertrand, Didier Hocquet, Catherine Chirouze. Human Infection of Methicillin-Susceptible Staphylococcus aureus CC398: A Review. Microorganisms, MDPI, 2020, 8 (11), pp.1737. ⟨10.3390/microorganisms8111737⟩. ⟨hal-03037830⟩

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