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 2

Organ systems involved in infection with R. equi in immunocompromised and immunocompetent patients in Europe and the United States.

Immune status	Europe		United States^†
	Pulmonary ± extrapulmonary	Extrapulmonary only	Pulmonary ± extrapulmonary	Extrapulmonary only
Immunocompromised	107/113^‡ (95%)	6/113 (5%)	21/22 (95%)	1/22 (5%)
Immunocompetent	0	0	5/14 (36%)	9/14 (64%)

From Arlotti et al. [11], Donisi et al. [12], Topino et al. [13], and Torres-Tortosa et al. [16].
^†From Scott et al. [14], Verville et al. [15], and the 12 cases in Central Kentucky reported in the present study.
^‡Number of patients with the organ involvement/total number of patients.
= 0.0002 when compared to immunocompromised patients in the US and when compared to immunocompromised patients in Europe.