Viruses without Borders: Deadly Outbreaks of the 21st Century
Rapid trends in globalization, increase in population, and genetic diversity of viruses collectively provide grounds for emergence and reemergence of viral outbreaks that are threats to overall continuum of human development. In addition to human factors, environmental factors such as water, soil, mosquito vectors and animals are also contributing to the outbreaks of viral diseases. In the past two decades, we have witnessed some of the deadly viral epidemics of the 21st century such as the Ebola virus epidemic in West Africa [1], Yellow Fever outbreak in Angola [2], the 2009 flu pandemic [3]. Dengue Fever [4], and Zika outbreak especially in Brazil [5], just a few to mention. From such outbreaks occurring unpredictably around the world, infectious diseases epidemiologists and global health experts acknowledge viruses have now evolved to rapidly cross international borders. In countries where resources of rapid viral detection and prevention programs are indeed limited, these outbreaks have produced devastating consequences not only overwhelming the local health departments’ capacity to confront the epidemics, but also, they have had serious and measurable devastating effects on economy and human productivity [6].