Occurrence of Enterobacteriaceae in Raw Meat and in Human Samples from Egyptian Retail Sellers

Table 1

Identification of Enterobacteriaceae in meat and meat handler samples by MALDI-TOF MS.

Identified microorganism	Raw beef meat; ( = 50)	%	Raw chicken meat; ( = 50)	%	Total	%	Stool specimens; ( = 25)	%	Hand swabs; ( = 25)	%	Total	%
Citrobacter spp.	12	24.0	1	2.0	13	13.0	4	16.0	3	12.0	7	14.0
C. amalonaticus	0	0	0	0	0	0	1	4.0	1	4.0	2	8.0
C. freundii	5	10.0	1	2.0	6	6.0	3	12.0	1	4.0	4	8.0
C. braakii	3	6.0	0	0	3	3.0	1	4.0	1	4.0	2	8.0
C. koseri	3	6.0	0	0	3	3.0	0	0	0	0	0	0
C. youngae	1	2.0	0	0	1	1.0	0	0	0	0	0	0
Enterobacter cloacae	0	0	0	0	0	0	2	8.0	0	0	2	4.0
Escherichia coli	27	54.0	8	16.0	35	35.0	17	68.0	6	24.0	23	46.0
Klebsiella spp.	3	6.0	13	26.0	16	16.0	1	4.0	9	36.0	10	20.0
K. pneumoniae	3	6.0	11	22.0	14	14.0	0	0	6	24.0	6	12
K. oxytoca	0	0	2	4.0	2	2.0	1	4.0	3	12.0	4	8.0
Morganella morganii	16	32.0	2	4.0	18	18.0	0	0	2	8.0	2	4.0
Proteus spp.	29	58.0	39	78.0	68	68.0	15	60.0	7	28.0	22	44.0
P. vulgaris	22	44.0	0	0	22	22.0	4	16.0	0	0	4	8.0
P. mirabilis	6	12.0	39	78.0	45	45.0	11	44.0	7	28.0	18	36.0
P. penneri	1	2.0	0	0	1	1.0	0	0	0	0	0	0
Providencia spp.	1	2.0	1	2.0	2	2.0	0	0	0	0	0	0
Providencia stuartii	0	0	1	2.0	1	1.0	0	0	0	0	0	0
Raoultella spp.	5	10.0	2	4.0	7	7.0	0	0	3	12.0	3	6.0
R. planticola	5	10.0	0	0	5	5.0	0	0	1	4.0	1	2.0
R. ornithinolytica	0	0	2	4.0	2	2.0	0	0	2	8.0	2	4.0
Serratia liquefaciens	1	2.0	0	0	1	1.0	0	0	0	0	0	0
Total number of isolates	94		66		160		39		29		68