Group B

Group B typically refers to a classification in various contexts, such as vaccines, medical conditions, or organizational categories. For example, in vaccines, Group B can indicate a specific tier of bacteria or viruses that a vaccine targets. In medical diagnoses, it might categorize a certain set of symptoms or patient groups. Overall, "Group B" helps organize and differentiate items or groups based on shared characteristics, making it easier to understand, study, or address them systematically. If you have a particular context in mind, I can give a more precise explanation.