Volume 27, Number 11—November 2021
Research
Multidrug-Resistant Methicillin-Resistant Staphylococcus aureus Associated with Bacteremia and Monocyte Evasion, Rio de Janeiro, Brazil
Figure 6

Figure 6. Scatter plots showing evasion of phagocytosis by MRSA isolates, Rio de Janeiro, Brazil, 2014–2017. A) Phagocytosis rates for representatives of the phylogenetic groups CC5-Basal, CC5-IIA, and CC5-IIB. Four independent experiments were conducted for each lineage using 1 fluorescence-activated single cell sorting determination for each experiment. Horizontal lines indicate means; whiskers indicate SDs. B) Viable count of unphagocytosed (free) bacteria after 30-min interaction with THP-1 monocytes. Six independent experiments were considered, with 2 replicates per lineage. Horizontal lines indicate means; whiskers indicate SDs. Statistical analyses conducted using 1-way analysis of variance and Tukey multiple comparison test. CC, clonal complex; NS, not significant; MRSA, methicillin-resistant Staphylococcus aureus; SCC, staphylococcal cassette chromosome; ST, sequence type.
1These first authors contributed equally to this article.
2Current affiliation: Fluminense Federal University, Niteroi, Brazil.
3Current affiliation: Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.
4These authors were co–principal investigators.