Abstract:
Highly Resistant Bacteria Emerging to Antibiotics (HRBEA) are
commensal bacteria of the digestive tract and they resist to many antibiotics
with transferable mechanisms between bacteria. The HRBEA are the
Carbapenem-resistant Enterobacteriaceae (CRE) and Enterococcus
faecium Resistant to glycopeptids (ERG).
The control of the HRBEA's diffusion is a serious public
health issue, actually these resistances are spreading continuously all over
the world.
In our retrospective and prospective study, which starts from
January 1, 2018 to April 30, 2019, the HRBEA isolation rate was 3%, with a
percentage of 1,96 % for CRE and 17,14% for VRE. For this study, we have used
large and small scale microbiology service equipment such as ovens, optical
microscope, as well as pastors pipettes, blades and strips, benzene beaks,
culture and isolation media, the Walkaway automation,...etc. The isolation, the
identification of these germs were carried out according to the conventional
methods of bacteriology, by classical techniques and by Walkaway automation,
and the antibiogram according to the CLSI recommendations.
Salmonella Heidelberg was the most isolated species
(40.47%) caused by the epidemic that cracks down in the nursery service,
followed by Klebsiella pneumoniae, Enterobacter cloacae, and
Providencia stuartii for the CRE. In all VRE, the Enterococcus
faecium was the major isolated sort.
These HRBEA were isolated from different types of samples,
mainly stool (40.47%), urine for CRE and urine (42.37%), blood cultures for
VRE. Regarding hospitalization services, these HRBEA were found mainly in
nursery services (48.80%), medical resuscitation and pediatrics for CRE, and in
the center of burns (44.44%), nursery, and pediatrics for VRE.
An important attention given to the hygiene and a
rationalization of the antibiotics utilization are factors that promote a
better control of the infections due to these germs.
Our recommendations: the application of preventive measures
and the establishment of a special program to control the HRBEA's diffusion can
reduce the rate of these germs transmission.
Keywords: CHUC, HRBEA, (CRE, VRE),
Antibiotics bacteria resistance, prevention, HRBEA epidemiology.
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