Occurrence and antimicrobial susceptibility of selected bacteria isolated from mobile phones of health workers from Uganda Martyrs' Hospital Lubaga
Zawedde, Jenina Yunia
MetadataShow full item record
Background: Mobile phones have become part of health professional’s equipment and are used extensively for communication in clinical setting. Mobile phones like any inanimate objects can harbor microorganisms associated with human infections. Aim: This study investigated the occurrence and antimicrobial susceptibility of selected bacteria isolated from mobile phones of health workers in Uganda martyrs hospital, Lubaga Kampala. Methods: A total of 66 mobile phones were randomly selected and swabbed using sterile swabs. These included 10 from laboratory personnel’s phones, 27 from pediatrics ward (22 nurses and 5 doctors), 20 from Obstetrics and gynecology ward (3 doctors, 6 midwives and 11 nurses) and 9 from Intensive care unit (2 doctors and 7 nurses). The isolated bacteria were identified using colony characteristics, gram staining and biochemical tests. Antibiotic susceptibility was determined using Kirby Bauer disk diffusion method and zones of inhibition interpreted according to standard reference ranges provided by NCCLS to establish whether the organisms were susceptible, intermediate or resistant. Results: Out of 66 samples, 59 (89.4%) of the samples showed growth. CoNS (55.9%) was the predominant pathogen followed by Staphylococcus aurous (42.37%) and Escherichia coli(1.73%) as the least dominant bacteria isolated. 66 mobile phones were sampled and from the Doctors, S. aureus was isolated from 3/66 (4.5%) of the mobile phones, 5/66 (7.6%) from the phones of Laboratory personnel, 15/66 (22.7%) from the phones of Nurses and 2/66 (3.0%) from the phones of midwives. 4/66 (9.1%) of the phones were contaminated by Coagulase negative Staphylococcus and were from laboratory personnel, 4/66 (6.1%) of the contaminated phones from doctors, 21/66 (31.8%) of the contaminated phones from nurses and 3.0% contamination of mobile phones for midwives CoNS was most sensitive to Meropenem (93.94%) & Gentamycin(76.19%) whereas resistant to Co-trimoxazole (84.85%) and ampicillin(70%). Staphylococcus aureus was highly susceptible to meropenem(92%) followed by vacomycin(84.5%) and most resistant to ampicillin(77.78%) followed by Co-trimoxazole(76%). Like other isolates, the Escherichia coli isolate was sensitive to meropenem and resistant to Co-trimixazole and ampicillin. Conclusion and recommendations: This study confirmed that mobile phones of HWs are contaminated with potential and important pathogenic bacteria. In order to reduce the incidence of antibiotic resistant noscomial infections, HWs should practice hand and mobile phone disinfection with apropriately prepared disinfectants. Antibiotic use should be highly regulated in an effort to prevent emergence resistant bacterial species.