Table 4. Aetiological agents of neonatal sepsis in Nigeria.

Study	Positive cultures (n)	GBS (%)	Unspecified Streptococci (%)	Proteus spp (%)	Pseudomonas spp (%)	K. pneumoniae (%)	E. coli (%)	S. aureus (%)	CoNS* (%)	Others ¶(%)
Medugu 2017 [25]	7	14.3	-	-	-	42.9	-	42.9	-	-
Medugu 2017 [26]	81	-	-	-	8.6	11.1	3.7	59.3	6.2	11.1
Olatunde 2016 [27]	72	-	-	1.4	6.9	11.1	2.8	70	-	7.8
Peterside 2015 [28]	97	_	-	8.2	7.2	14.4	16.5	51.5	-	2.2
Shobowole 2015[29]	85	-	-	4.7	-	36.5	-	18.8	11.1	28.9
Onyedibe 2015 [30]	75	-	-	2.7	4.0	32.0	10.7	30.7	6.7	13.2
Ekwochi 2014 [31]	17	_	-	-	-	-	18	53	-	29
Okon 2014 [32]	70	_	-	1.4	2.9	21.4	8.6	56	1.4	8.3
Uzodimma 2013 [33]	16	_	13	-	-	9	6	56	-	16
Kingsley 2013 [34]	91	-	-	3.3	-	16.5	25.3	42.9	4.4	7.6
Awoala 2012 and West Peterside [35]	169	_	0.9	5.5	3.6	58.2	8.1	20	1.8	1.9
Ogunlesi 2011[37]	174	_	-	6.3	4	23	11	31	12.6	12.1
Nwadioha 2010 [38]	326	_	-	4.4	-	12.3	55.1	27.6	-	0.6
Anah 2008 [6]	363	_	8.3	0.5	2.8	3.3	-	53	-	32.1
Udo 2008 [39]	178	-	8.5	-	-	2.2	-	65.2	-	24.1
Fadero 2007 [40]	32	_	-	18.8	-	9.4	6.3	56.3	6.3	2.9
Ojukwu 2006 [7]	33	3	9.0	3	3	9.1	18.2	45.5	-	12.2
Iregbu 2006 [41]	85	_	-	-	4.7	43.5	1.2	40	2.4	8.2
Meremikwu 2005 [42]	271	_	4.8	0.4	5.9	-	-	51	2.2	35.7
Mokuolu 2002 [43]	61	_	-	-	1.6	16.4	4.9	29.5	24.6	23
Adejuyigbe 2001 [48]	66	_	-	-	18.8	8.7	5.8	36.2	15.9	14.6
Antia-Obong 1992 [52]	100	_	3	1	1	7	3	45	-	40
Airede 1992 [45]	99	-	-	-	-	37		37	-	26
Owa 1988 [47]	31	_	-	-	-	12.9	12.9	25.8	3.2	45.2

* CoNS = Coagulase negative Staphylococci. GBS = Group B Streptococcus

^¶Other pathogens detected: Salmonella spp, Streptococcus pneumoniae, Serratia marcescens, Haemophilus influenzae, Enterococcus spp, Enterobacter spp.