Ocorrência de staphylococcus aureus em superfície de aparelhos celulares de estudantes em dois cursos de graduação da Universidade Federal da Paraíba.

Abstract

The microorganisms can be transmitted through inanimate sources, characterizing an exposure to health, with the possibility of disease development in individuals and between people. Thus, the objective of this study was to evaluate the level of microbial contamination in the cell phones of undergraduate students courses at the UFPB, with emphasis on the isolation of Staphylococcus aureus. At the time of collection, they were informed of the research procedures and answered the questionnaire with questions about caring for the hygiene of the cellular devices. Subsequently, samples were collected totaling 90 samples, being sent to microbiological analysis in the Laboratory of Microbiology and studies in Mycology of the Department of Pharmaceutical Sciences of the Center of Health Sciences CCS/UFPB. By swab, the samples were collected, inoculated in tubes containing 0.9% saline, and transported in a thermal vessel for processing. The samples were enriched in BHI broth for 2 hours before seeding in sterile Petri dishes containing the media of Blood Agar and Salted Manitol Agar. After 24-48 h the plates were analyzed for the growth of the colonies, especially for those with characteristics of the genus Staphylococcus spp, and submitted after isolation to the confirmatory tests as catalase, DNAse, and previously fermentation of mannitol. It was observed that 65.6% of the students in group A didn’t carry out the frequent hygiene of the mobile devices, followed by 34.4% of the students in the group B. The samples from group A presented 45.2% of contamination by S aureus; followed by 37.5% from group B. Of the 90 samples collected, 37 (41.1%) were characterized as S. aureus. Thus, we emphasize that the cell devices present in our society can function as sources of several microorganisms, including pathogens; and that the process of sanitizing cell phones as a frequency is a relevant procedure due to the constant contact, handling and exposure of people to these devices.