One of the greatest dangers in researching microfungi is nature itself. Whilst collecting you can fall out of a tree or being attacked by a great number of insects and ticks.
One of the worst is Ixodus ricinus (the sheep tick) who can infect you with the Borrelia burgdorferi bacterial spirochete that causes Lyme disease.
Scale: tick is 1,5 mm long. More information about this is found at Lyme disease foundation
Danger for your Library! Ctenolepisma longicaudatum (Thysanura, Lepismatidae) is living indoors and likes paper.