Table 2. Average level of incidents in specific labs of universities.

Type and percentage of incidents in labs	Sources
2% of accidents in fabrications rooms 13% in other places of research labs	Hellman et al. [49]
30% of people working in labs has assisted with serious injury over a period of 20 years	Van Noorden [50]
15% of people in labs has experienced at least one lesion or mishap	Ayi and Ho [51]
18% of lab incidents have occurred at the Iowa State University	Simmons et al. [52]
25% of hazard types are spills and fires 18% of hazard types are for equipment failure or explosion 16% of hazard types are associated with cryogenics 15% of hazard types are spills and sharps 12% of serious incidents has involved a researcher requesting an external help
12% is “near miss” incidents	Kou et al. [53]
A natural zoonosis is a rare event	Coccia [12]