The Unknown
"I think it is an Enterococcus ." I stated proudly at the dinner table. It is not every day that the dinner conversation revolves around dangerous disease-causing bacteria, but tonight the topic of discussion was my microbiology lab. As the semester comes to a finish, every microbiology student is given a little test tube with an unknown bacteria in it. As far as the student knows, it could be any bacteria in the entire world, so they run tests and come to conclusions about their bacteria based on the process of elimination. As of right now, I am convinced my little bacteria is an Enterococcus . "How do you know?" My friend gently asked. "Well, it is a catalase-negative gram-positive cocci that grows in 12% Sodium Chloride. Plus it is gamma-hemolytic and is able to hydrolize esculin in the presence of bile." I was so proud. My friend just stared blankly and then smiled. For the first time, I was excited about my unknown bacteria. At first, the whol...