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Table 3 Rates of antimicrobial resistance among gram-positive bacteria most frequently isolated from patients with BSIs

From: Epidemiology and microbiology of Gram-positive bloodstream infections in a tertiary-care hospital in Beijing, China: a 6-year retrospective study

Microbiology Antimicrobial drug nri/nrt(%resistant)         
Penicillin Ampicillin Gentamicin Erythomycin Ciprofloxacin Clindamycin Linezolid Vancomycin Tetracycline
staphylococcus
 Staphylococcus aureus 96.2%(153/159) 40.9%(65/159) 32.7%(52/159) 57.9%(92/159) 34.6%(55/159) 51.6%(82/159) 30.8%(32/104)
 CNS 96.4%(429/445) 74.4%(331/445) 20.4%(91/445) 85.6%(381/445) 47.0%(209/445) 69.2%(308/445 *
 staphylococcus epidermidis 96.7%(731/756) 88.0%(665/756) 10.2%(77/756) 85.1%(643/756) 56.1%(424/756) 45.2%(342/756) 0.13%(1/756) 2.2%(15/685)
 MRSA 100%(68/68) 100%(68/68) 47.1%(32/68) 75.0%(51/68) 86.8%(59/68) 75.0%(51/68) 38.2%(26/68)
 Staphylococcus hominis 91.0%(832/914) 74.4%(680/914) 2.7%(24/914) 91.2%(834/914) 52.6%(481/914) 68.3%(624/914) 42.8%(345/806)
 Staphylococcus haemolyticus 96.0%(117/122) 94.3%(115/122) 72.1%(88/122) 95.1%(116/122) 84.4%(103/122) 52.5%(64/122) 32.0%(39/122)
enterococcus
 E.faecalis 9.1%(12/132) 11.4%(15/132) 31.1%(41/132) 53.4%(31/58) 35.6%(47/132) * 3.8%(5/132) 59.5%(47/79)
 E.faecium 92.5%(272/294) 91.5%(269/294) 70.4%(207/294) 74.3%(139/187) 90.1%(265/294) * 3.1%(9/294) 4.1%(12/294) 43.8%(89/203)
Streptococcus
 Viri-dans streptococcus 0%(0/32) 0%(0/48) * 70.4%(23/24) * 0%(0/24) 0%(0/25) 0%(0/25) *
 Streptococcus pneumonia 30%(3/10) 80%(8/10) * 90%(9/10) 0%(0/3) 100%(1/1) 0%(0/10) 0%(0/10) *
  1. nri number of resistant isolates, nrt number of isolates tested
  2. -: without resistant; *: without test