Table 3: Distribution of Enterobacteriaceae resistant to third generation cephalosporins by species over a period of 5 years (2016- 2020) in the region of Monastir - Tunisia.

Species of Enterobacteriaceae	N (1)	n, F (%) (2)	P (%) (3)
Escherichia coli	6706	1117 (40.9)	16.6
Klebsiella pneumoniae	2692	1074 (39.4)	39.9
Enterobacter sp	969	220 (8.1)	22.7
Others (4)	2060	317 (11.6)	15.4
TOTAL	12 427	2728 (100)	21.9

(1) N: Number of total population

(2) n, F (%): Number and frequency of third generation cephalosporin-resistant Enterobacteriaceae

(3) P (%): Prevalence of multi-Drug-Resistant Bacteria

(4) Others: Citrobacter freundii, Citrobacter koseri, Morganella sp, Proteus mirabilis, Providencia sp, Serratia marcescens…