Since the beginning of time, microorganisms have been in existence. With time, new pathogens have emerged as a result of complex interplay of anthropogenic and natural factors like, human migration, shifts in weather pattern, genetic shuffling of the organisms themselves and more which have been discussed in detail. This review article focuses solely on emerging and re-emerging viruses: Chikungunya, Coronavirus, Dengue, Ebola, Hepatitis C, Herpes Simplex Virus (HSV), Human Immunodeficiency Virus (HIV), Human Papilloma Virus (HPV), Influenza and Zika; and the latest progresses made in finding effective anti-viral drugs via drug repurposing as we know this approach outplays de novo production significantly with respect to time and money. In a time where new diseases are being reported once every year, drug repurposing will certainly come in handy in developing anti-viral therapeutics promptly. Additionally, the study elaborates on the mechanisms of actions of these drugs as well as the targets whilst including recent and well-known incidences of deadly, viral outbreaks.
Key words: drug repurposing, emerging diseases, viral diseases, epidemics, viruses
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