Alfiana Laili Dwi Agustin, Mustofa Helmi Effendi, Wiwiek Tyasningsih, Aswin Rafif Khairullah, Kunti Tirtasari, Ikechukwu Benjamin Moses, Siti Rani Ayuti
Background: Escherichia coli is a Gram-negative commensal bacterium that normally resides in the digestive tract of humans and animals which is used as an indicator of the extended-spectrum beta-lactamase (ESBL) gene in an individual and can carry out gene transfer. Transmission of ESBL E. coli from wild animals has not been given much attention even though wild animals can act as vectors that spread ESBL in the environment so that it can pose a risk to public health. This research aims to identify the blaTEM gene which codes for ESBL in E. coli from bats that live in caves in Lombok, Indonesia. Methods: A total of 135 samples from bat rectal swabs were cultured on Eosin Methylene Blue Agar media and biochemical suspects were identified using the Indole, Methyl red, Voges-Proskauer, Citrate + and H2 S (IMVIC) test. The E. coli bacteria obtained were tested for sensitivity using 7 classes of antibiotics, namely amoxicillin, ciprofloxacine, sulfamethoxazole/trimethoprim, tetracycline, gentamicin, cefotaxime and azithromycin. Bacteria that show multidrug resistance are subjected to PCR testing to detect the blaTEM gene. Result: Of the 135 test samples, it was found that 97 (71.85%) samples were positive for E. coli, 12 (12.37%) samples were Multidrug Resistance (MDR) and 2 (2.06%) samples had the blaTEM gene as the ESBL coding gene in bats that live in caves on the island of Lombok, Indonesia. The presence of the blaTEM gene in E. coli from bats can be indicated as a reservoir for MDR and ESBL transmission so that it can have an impact on public health. © 2026, Agricultural Research Communication Centre. All rights reserved.
Doctoral Program of Veterinary Science, Faculty of Veterinary Medicine, Universitas Airlangga, Jl. Dr. Ir. H. Soekarno, Kampus C Mulyorejo, East Java, Surabaya, 60115, Indonesia; Division of Veterinary Public Health, Faculty of Veterinary Medicine, Universitas Airlangga, Jl. Dr. Ir. H. Soekarno, Kampus C Mulyorejo, East Java, Surabaya, 60115, Indonesia; Division of Veterinary Microbiology, Faculty of Veterinary Medicine, Universitas Airlangga, Jl. Dr. Ir. H. Soekarno, Kampus C Mulyorejo, East Java, Surabaya, 60115, Indonesia; Research Center for Veterinary Science, National Research and Innovation Agency (BRIN), Jl. Raya Bogor Km. 46 Cibinong, West Java, Bogor, 16911, Indonesia; Department of Applied Microbiology, Faculty of Science, Ebonyi State University, Abakaliki, 480211, Nigeria; Faculty of Veterinary Medicine, Universitas Syiah Kuala, Jl. Tgk. Hasan Krueng Kalee No. 4, Kopelma Darussalam, Aceh, Kota Banda Aceh, 23111, Indonesia
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