Stefani S, Bongiorno D, Cafiso V, Campanile F, Crapis M, Cristini F, Sartor A, Scarparo C, Spina D, Viale P. Pathotype and susceptibility profile of a community-acquired methicillin-resistant Staphylococcus aureus strain responsible for a case of severe pneumonia.
Diagn Microbiol Infect Dis 2009;
63:100-4. [PMID:
19073304 DOI:
10.1016/j.diagmicrobio.2008.09.012]
[Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2008] [Revised: 09/08/2008] [Accepted: 09/13/2008] [Indexed: 10/21/2022]
Abstract
Recent articles have described an increasing number of infections due to Panton-Valentine leukocidin PVL-positive community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) worldwide. We report a case of necrotizing pneumonia successfully treated with levofloxacin in Italy, sustained by a PVL-positive CA-MRSA, belonging to ST88 and carrying a staphylococcal chromosomal cassette mec type V. Further molecular characterization of isolates revealed that they were PVL positive, belonged to the agr IV allele, possessed a capsular type 8, and had an almost complete pathotype composed of leukocidins and numerous adhesins. In addition, the strains were strong biofilm producers.
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