Related Clues:

• Organism causing disease or fermentation
• Looking back, man?s address, for example, is found in seedy environment
• Plunder overrun by vermin - a source of infection
• Vermin seen round sack - cause of disease?
• Ruler poked inside decoration unearths microbe
• Runs into stone at the beginning
• Younger men harbour potential killer
• Very tiny organism, especially a bacterium
• Cause of infection
• Heptagon (anag.)
• King Edward held by genetically modified root
• Small organism inserting sting in rodents
• Something precious about Republican in beginning
• Country needing to destroy any bug
• Minute lifeform