From Cellphone Surface to Microbial Identity: Characterization of an Unknown Bacterium

Abstract

This presentation explores the identification of an unknown bacterium isolated from a cellphone, highlighting the presence of microorganisms on everyday surfaces. Through microscopy, biochemical testing, and metabolic analysis, the organism was systematically characterized based on its morphology and physiological properties. Key tests included Gram staining, motility analysis, and multiple biochemical assays to determine metabolic capabilities. The results suggest that the organism is a Gram-positive, non-motile, fermentative bacterium most consistent with a Streptococcus species. This project demonstrates the importance of microbial identification and emphasizes the relevance of microorganisms in human-associated environments