Biological threats go beyond infectious disease epidemics. A biological threat should be construed as the effects of deployment of biological warfare or the occurrence of biological events of natural origin, which can have significant impact on the breach of security in the military, social, ecological and biological context. Biological factors are often recognized as an important and increasingly appreciated problem of widely understood public health. Epidemiological data indicates that, worldwide, at least several hundred million people are exposed to them. A fallacious conviction prevails that biological factors generally affect health care workers who are exposed to them as part of their daily professional routine. However, we rarely re...