Respiratory tract infections can be caused by a wide variety of phathoges(Bacteria,mycobacteria,fungus,viruses) which can infect both animals and human. Airborne transmission via droplets and aerosols enables some of these viruses to spread efficiently among animals-humans, causing outbreaks that are difficult to control. Many outbreaks have been investigated retrospectively to study the possible routes of inter- animal-human virus transmission. Ethno-veterinary and herbal practices have been in use for centuries, resulting in transfer of knowledge to the common people of the society including the farming sector. The main advantages lie in the facts that they are accessible, easy to prepare and administer, with little cost involved. This paper reviewed the Alien medicinal plants in South Africa that possessed antibacterial ,antimycobacterial , antifungal ,antiviral activities and immunodulatory.

Keywords : Antimicrobial,Alien medicinal plants, Bronchitis, Chronic obstructive pulmonary disease,Phathogens, immunodulatory.

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