Contamination by Antibiotic-Resistant Bacteria on Cell Phones of Vendors in a Peruvian Market

Walter Gómez-Gonzales, Anthony Alvarado-Garcia, Marytté Suárez-Mamani, Bernardo Dámaso-Mata, Vicky Panduro-Correa, Jorge L. Maguiña, Samuel Pecho-Silva, Ali A. Rabaan, Alfonso J. Rodriguez-Morales, Kovy Arteaga-Livias

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Background and Objectives. Multiple studies have evaluated the presence of bacterial contamination on cell phones in clinical settings; however, the presence and transmission of antibiotic-resistant bacteria on cell phones in the community have not been adequately elucidated. Material and Methods. A cross-sectional study was carried out to determine the presence of bacteria resistant to antibiotics on the cell phones of vendors in a Peruvian market and the associated factors. A sample of 127 vendors was obtained through stratified probabilistic sampling using a data collection form validated by experts. Cell phone samples were cultured using a standard technique, and antibiotic sensitivity was determined using the Kirby–Bauer technique. Chi-squared and Mann-Whitney U tests were used to determine factors associated with resistance in cell phone cultures. Results. Among the cell phones, 92.1% showed bacterial growth, predominantly Gram-positive bacteria (coagulase-negative staphylococci and Staphylococcus aureus), and 17% of the cultures showed resistance to at least three antibiotics evaluated. Two strains fell into the category of methicillin-resistant S. aureus, and three strains of E. coli had resistance to carbapenems. Conclusions. A short distance between customers and vendors, lack of a cell phone case, and having a cell phone with touchscreen are factors associated with antibiotic-resistant bacteria on cell phones.

Original languageEnglish
Article number669
JournalMedicina (Lithuania)
Issue number4
StatePublished - Apr 2023
Externally publishedYes

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  • Staphylococcus aureus
  • antibiotic bacterial resistance
  • bacterial contamination
  • cell phone
  • community-acquired infections


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