The list includes bacteria (including rickettsia and chlamydia), viruses, prions, fungi, protozoa and poisons (toxins), with the specification of their relevant risk group. Works with conditionally-pathogenic microorganisms and pathogenic biological agents may only be performed pursuant to a licence issued by the Ministry of Healthcare of Belarus. Works with pathogenic biological agents belonging to risk groups 3 or 4 (high and very high risk) may only be performed by state organisations.