Toxic agents hitting inside the human bodies or contacting with our skin or a mucous membrane are liable to cause death, poisoning or a disease.

Toxic agents are subdivided on high toxic, toxic and slightly toxic by the level of their influence. Substances that contain pathogenic organisms, bacteria, viruses, rikketsiya, parasites and the fungi are named the infectious substances. These substances are causative agents of infectious diseases of animals and people.

Infectious substances are subdivided into groups of danger depending on their pathogenic properties and level of risk. 

  • Division 6.1: Toxic agents with lethal inhalation concentration up to 10 mg/dm3 in open air, capable to cause death for 50% of human population in the infection zone
  • Division 6.1: Infectious substances containing pathogenic microorganisms (bacteria, viruses, fungi, parasites, etc.).