She laughed slightly, peering into the microscope. "I don't much like your tests either," she replied. "Oh! They look like spirochete!"
She pulled away, looking at him with light in her eyes. "That must be how they're able to display themselves in the dermis," she said excitedly. "They're able to colonize and manifest as the tattoos."
This time, she wasn't able to hide it. Her entire face turned pink and she squinted at him, clearly embarrassed. "It's the benefit of growing up in isolation."