Table 1. Etiologic agents of bloodstream infections according to acquisition site (2008–2016)

Ann Clin Microbiol 2020;23:33-43. Season and Temperature Effects on Bloodstream Infection Incidence in a Korean Tertiary Referral Hospital

Year	S. aureus				Enterococcus spp.				E. coli				K. pneumoniae				Acinetobacter spp.				P. aeruginosa
Year	Total	CO	HA	CO/HA	Total	CO	HA	CO/HA	Total	CO	HA	CO/HA	Total	CO	HA	CO/HA	Total	CO	HA	CO/HA	Total	CO	HA	CO/HA
2008	256	93	163	0.6	368	54	314	0.2	443	313	130	2.4	191	106	85	1.2	160	15	145	0.1	113	44	69	0.6
2009	338	109	229	0.5	365	45	320	0.1	494	340	154	2.2	263	147	116	1.3	247	15	232	0.1	175	50	125	0.4
2010	272	120	152	0.8	395	62	333	0.2	453	328	125	2.6	223	116	107	1.1	144	15	129	0.1	85	32	53	0.6
2011	395	114	281	0.4	508	54	454	0.1	586	346	240	1.4	430	195	235	0.8	164	17	147	0.1	102	47	55	0.9
2012	319	139	180	0.8	347	55	292	0.2	490	358	132	2.7	292	167	125	1.3	202	20	182	0.1	80	22	58	0.4
2013	369	112	257	0.4	508	102	406	0.3	619	461	158	2.9	413	206	207	1.0	240	29	211	0.1	94	30	64	0.5
2014	312	139	173	0.8	476	93	383	0.2	678	497	181	2.7	351	204	147	1.4	167	21	146	0.1	84	23	61	0.4
2015	373	167	206	0.8	461	84	377	0.2	766	559	207	2.7	403	230	173	1.3	171	23	148	0.2	95	35	60	0.6
2016	441	160	281	0.6	552	98	454	0.2	836	596	240	2.5	477	242	235	1.0	162	15	147	0.1	99	44	55	0.8
9 years	3,075	1,153	1,922	0.6	3,980	647	3,333	0.2	5,365	3,798	1,567	2.4	3,043	1,613	1,430	1.1	1,657	170	1,487	0.1	927	327	600	0.5

Abbreviation: CO, community-onset; HA, hospital-acquired.