Activity of ceftolozane/tazobactam against Gram-negative isolates from patients with lower respiratory tract infections – SMART United States 2018–2019

Table 3 Species distribution among Enterobacterales collected from patients with RTI in ICU (n = 1005) and non-ICU wards (n = 726) – SMART 2018–2019, United States^a

Species of Enterobacterales	ICU, n (% of ICU isolates of Enterobacterales)	Non-ICU, n (% of non-ICU isolates of Enterobacterales)
K. pneumoniae	234 (23.3)	156 (21.5)
E. coli	187 (18.6)	129 (17.8)
S. marcescens	130 (12.9)	102 (14.0)
E. cloacae	86 (8.6)	66 (9.1)
K. aerogenes	84 (8.4)	52 (7.2)
K. oxytoca	71 (7.1)	53 (7.3)
P. mirabilis	60 (6.0)	48 (6.6)
Other species	153 (15.2)	120 (16.5)

^a Of the 1938 isolates of Enterobacterales, 57 were from emergency rooms and 150 did not have a location provided and were excluded from this table

ISSN: 1471-2180