Staphylococcus aureus is a type of bacteria ... yellow to white appearance on blood agar. Dr. Ananya Mandal is a doctor by profession, lecturer by vocation and a medical writer by passion.

The young scientists put their phones in petri dishes containing agar, a nutrient rich substance ... however they did discover some traces of staphylococcus aureus, which can cause skin infections.

Nasty surprise: bacteria growth agar plate (Picture: University of Surrey) But the young scientists generally found the bacteria was harmless, except for some traces of staphylococcus aureus ...