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Virulence factors and antibiotic resistance properties of Streptococcus species isolated from hospital cockroaches

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Abstract

Hospital cockroaches are probable sources of pathogenic bacteria. The present investigation was performed to assess the antibiotic resistance properties and distribution of virulence factors in the Streptococcus spp. isolated from hospital cockroaches. Six hundred and sixty cockroach samples were collected. Cockroaches were washed with normal saline, and the achieved saline was used for bacterial culture. Isolated Streptococcus spp. were subjected to disk diffusion. The distribution of virulence factors and antibiotic resistance genes were assessed using a polymerase chain reaction. The prevalence of S. pyogenes, S. agalactiae, and S. pneumonia amongst examined samples was 4.82%, 1.66%, and 6.96%, respectively. Cfb (53.93%), cyl (52.8%), scaa (51.68%) and glna (50.56%) were the most commonly detected virulence factors. Pbp2b (71.91%), pbp2x (58.42%), mefA (46.06%), ermB (46.06%) and tetM (46.06%) were the most commonly detected antibiotic resistance genes. Streptococcal spp. harbored the highest prevalence of resistance against tetracycline (80.89%), trimethoprim (65.16%), and penicillin (56.17%). To the best of our knowledge, this is the first prevalence report of virulence factors and antibiotic resistance genes in the Streptococcal spp. isolated from American, German, and oriental hospital cockroaches in Iran. Our findings indicated a certain role for cockroaches in nosocomial pathogens transmission in the hospital environment.

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Data availability

The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.

Abbreviations

S. pneumoniae :

Streptococcus pneumonia

S. pyogenes :

Streptococcus pyogenes

S. agalactiae :

Streptococcus agalactiae

bac :

Encode for β-antigen

cyl :

Encode for β-hemolysin

glnA :

Encode for glutamine synthetase

cfb :

Encode for the Christie–Atkins–Munch–Peterson (CAMP) factor

hylB :

Encode for hyaluronidase

scaA :

Encode for aggregation factor

bca :

Encode for α-antigen

scpB :

C5a peptidase

lmb :

Laminin-binding protein

CLSI:

Clinical Laboratory Standards Institute

PCR:

Polymerase chain reaction

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Acknowledgements

The authors would like to thank the Clinical Research Development Unit of Baqiyatallah Hospital, Tehran, Iran, for guidance and advice. The authors also gratefully acknowledge the Biotechnology Research Center, Shahrekord Branch, Islamic Azad University, Shahrekord in southwest Iran for their sincere support.

Funding

The authors declare that no funding was received for the research.

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Authors and Affiliations

Authors

Contributions

RR and MC conceived and designed the study; MC conducted the research; MC performed the experiments. RR and MC analyzed the data. MC carried out the writing and drafting of the manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Reza Ranjbar.

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Conflict of interest

The authors declare that they have no competing interests.

Ethical approval and consent to participate

This Research was approved in the Baqiyatallah University of Medical Sciences, Tehran, Iran (Project Ref Number 96-91002480). Verification of this research project and the licenses related to the sampling process were approved by Prof. Reza Ranjbar (Approval Ref Number Med-96-91002480).

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Chehelgerdi, M., Ranjbar, R. Virulence factors and antibiotic resistance properties of Streptococcus species isolated from hospital cockroaches. 3 Biotech 11, 321 (2021). https://doi.org/10.1007/s13205-021-02874-w

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  • DOI: https://doi.org/10.1007/s13205-021-02874-w

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