Possible Clues:

• Potential health risks of tailless camel eating earth
• Stalin's enforcer concealed routine bugs
• Pasteur's study
• They may be examined on slides
• I ate crab at sea, hence my indigestion?
• Tossing a caber -- it's possible cause of ill-health
• Bugs found in hair etc -- a bride's revolting
• Tiny creatures European found in ancient part of central Asia
• Possible cause of upset in cabaret, I suspect
• Potentially hostile agents work to break secret police chief