Phytoremediation is a method which involves growing plants in a contaminated matrix to remove environmental contaminants.It is the direct use of living green plants for the removal and degradation of contaminants in the soil as well as water bodies (Hassani et al. 2014).
Phytoremediation processes using plants to eradicate heavy metals provide efficient and ecologically sound approaches to sequestration. This article establishes several merA gene candidates for mercury phytoremediation purpose.
Naturally occurring organisms possess genes with remediating properties. However, using genetic engineering techniques is advantageous to transfer these genes to other organisms (Joutey et al., 2013). Such techniques help increase the bioremediation efficiency.
Moreover, they also show probable high risk areas in the future epidemics. These models are based on previous trends of incidents and climate factors. Thus they allow for better prediction of disease incidents or outcomes.
Epidemics of infectious diseases arise due to spread of the disease across individuals. It spreads within a geographical region over a period of time. When they spread at global level, it is referred to as pandemic. An infectious disease originates at a particular point.
Epidemiology of infectious diseases often require geographical information. Both spatial and temporal factors of a population can affect disease spread.