Abstract
Background:
Contamination with Klebsiella pneumoniae in food ingredients, including eggs, causes various dangers because it threatens public health, because it acts as a multidrug resistance (MDR) bacteria, especially the extendedspectrum beta-lactamase (ESBL) strain. The ESBL blaSHV gene is part of a broad-spectrum ESBL that is often found in Gram-negative bacteria.

Aim:
This study aimed to identify the ESBL blaSHV gene in K. pneumoniae MDR from chicken eggshells.

Methods:
This study used 160 samples of chicken eggshell swabs isolated on 1% BPW media from 10 traditional Surabaya markets. Samples were isolated using MCA media and were identified using Gram staining and biochemical tests. Detection of MDR using Muller-Hinton Agar.

Results:
Confirmation of ESBL in multidrug-resistant (MDR) isolates was performed using polymerase chain reaction to detect ESBL genes. The results showed that the isolation and identification of K. pneumoniae bacteria were 25.62% (41/160). Amoxicillin antibiotics showed the highest level of resistance at a percentage of 100% (41/41), followed by antibiotic resistance to erythromycin (90.24% (37/41), Streptomycin antibiotics were 26.82% (11/41), ciprofloxacin (14.63% (6/41), and Tetracycline antibiotic resistance was 7.31% (3/41). The results of MDR from K. pneumoniae showed 34.14% (14/41) of the isolates were then tested by PCR, which showed positive results for the blaSHV gene of 71.42% (10/14).

Conclusion:
The data from this study confirm the existence of K. pneumoniae bacteria isolated from egg shell swabs carrying the blaSHV gene from MDR isolates.

Key words: K. pneumoniae, MDR, ESBL, Public health, Egg shell