Differences in Rhodococcus equi Infections Based on Immune Status and Antibiotic Susceptibility of Clinical Isolates in a Case Series of 12 Patients and Cases in the Literature

Table 3

Comparison of organ system involvement, sites of clinical isolation, and radiographic findings in R. equi infection in the seven studies under analysis.

Studies	Number of patients	Site of isolation			Organ system involved		⁢Radiographic findings
		Respiratory specimen (%)	Blood (%)	Other^†	Pulmonary ± extrapulmonary (%)	Extrapulmonary only (%)	Pneumonia on imaging	Cavitary lesion (%)
Europe
Donisi et al. [12]	12	4 (25)	10 (63)	2 (12)	9 (75)	3 (25)	9	5 (56)
Arlotti et al. [11]	24	21 (51)	13 (32)	7 (17)	24 (100)	0 (0)	24	18 (75)
Torres-Tortosa et al. [16]	67	64 (52)	34 (27)	26 (21)	65 (97)	2 (3)	65	45 (49)
Topino et al. [13]	10	5 (38)	8 (62)	0 (0)	9 (90)	1 (10)	9	6 (67)
Subtotal	113	94 (48)	65 (34)	35 (18)	107 (95)	6 (5)	107	74 (69)
United States
Verville et al. [15]	12	8 (53)	5 (33)	2 (13)	8 (67)	4 (33)	8	6 (75)
Scott et al. [14]	12	6 (35)	7 (41)	4 (24)	8 (67)	4 (33)	8	7 (88)
University of Kentucky	12	7 (47)	5 (33)	3 (20)	10 (83)	2 (17)	10	4 (40)
Subtotal	36	21 (45)	17 (36)	9 (19)	26 (72)	10 (28)	26	17 (65)
Total	149	115 (48)	82 (34)	44 (18)	133 (89)	16 (11)	133	91 (68)

Total numbers of specimens are more than numbers of patients as R. equi was isolated from a variety of specimens.
^†Bone, joint fluid, abscess, wound, pleura and pericardial fluid, liver, brain, cerebral spinal fluid, stool, and skin.