When Danielle Johnson ate a salad, she had no idea she'd become a host to an organism that six years later would grow into a worm that would burrow into her brain. An ordinary insect bite on Allan Roth's foot led to 'flesh eating strep'. He shed his skin like a snake and had to have a large area of dead tissue removed from his abdomen and upper thigh. We assume that most infectious diseases can... (read more)