Table 2.

Bacterial species, geographical distribution and number of strains identified by MALDI-TOF MS in food specimens collected from retail shops at point of sale in Delta region

No	Genus and its prevalence (%)	Bacterial species	Type of food specimens	City	No. of isolates
1	Escherichia coli (44.76%)	E. coli	Minced and chicken meat, fillet fish meat, milk, yogurt, cottage, and fresh cheese	Tanta, Kutour, Kafr-Elzayat, Benha	77
2	Enterobacter spp. (17.44%)	E. cloacae	Minced meat, fillet fish meat, cottage cheese, milk	Tanta, Kutour, Kafr-Elzayat,	12
		E. asburiae	Fillet fish meat, minced meat, ice cream, cottage cheese	Tanta, Kutour	8
		E. kobei	Catfish meat, ice cream, cottage cheese	Tanta, Kafr-Elzayat	8
		E. ludwigi	Fillet fish	Tanta	2
3	Citrobacter spp. (12.2%)	C. Freundii	Fillet fish meat, minced meat, fresh cheese	Tanta	5
		C. youngae	Minced meat, yogurt	Tanta, Kafr-Elzayat	2
		C. braakii	Minced meat, cottage cheese	Tanta, Kafr-Elzayat	14
4	Klebsiella spp. (8.7%)	K. pneumoniae	Yogurt, catfish, milk	Kafr-Elzayat, Tanta, Kutour	11
		k. variicola	Yogurt, catfish	Kafr-Elzayat, Tanta	3
		k. oxytoca	Milk	Tanta	1
5	Proteus spp. (4.6%)	P. mirabilis	Milk	Kutour	8
6	Morganella spp. (3.5%)	M. morganii	Minced meat, milk, fresh cheese	Benha, Kutour, Tanta	6
7	Serratia spp. (1.7%)	S. marcescens	Minced meat	Benha, Tanta	3
8	Staphylococcus spp. (2.9%)	S. hominis	Minced meat, cottage cheese, yogurt	Tanta, Kafr-Elzayat	5
9	Pseudomonas spp. (1.1%)	P. aeruginosa	Milk	Kutour	2
10	Salmonella spp. (0.6%)	S. Typhimurium	Fillet fish meat	Tanta	1
11	Enterococcus spp. (0.6%)	E. faecalis	Fresh cheese	Tanat	1
12	Raoultella spp. (0.6%)	R. planticola	Minced meat	Kafr-Elzayat	1
13	Candida spp. (1.1%)	Candida krusei	Cottage cheese	Kafr-Elzayat	2
Total		20			172