Strain Variation

Strain variation refers to differences within the same species of a microorganism, such as bacteria or viruses. Think of it like different versions or "families" that have slight genetic differences. These variations can affect how they behave, like how sick they might make someone, how easily they spread, or how they respond to treatments. Recognizing strain variation helps scientists track disease outbreaks, develop effective medicines, and understand the evolution of pathogens over time. It’s a natural part of biological diversity within a species, influencing their characteristics and impact on health.