Presently, there is an increasing evidence concerning the bio-activities of various plant extracts and individual compounds and the probability of using them in different therapeutic applications, including the development of new antimicrobial agents. The essential oils could exhibit microbicidal activity, potentiate the activity of conventional antibiotics or act as virulence attenuators, by inhibiting the production of toxins by the microbial cells, or affect the ability of microorganisms to adapt to the environmental conditions provided by the host, without interfering with microbial...