Related Clues:

• Start of an idea
• Kind of infection
• Disinfectant target
• Seed
• Disinfectant's target
• Nasty bacteria, informally
• Bug's beginning?
• Short infection?
• Pathogen
• Birth of a notion
• Cold cause
• It may be sickening
• It can make you sick
• Bacterium
• Penicillin target, sometimes