Answer: Option(A)
Explanation:
An example of an environmental health concern is monitoring pathogens in a public water supply. Because infectious diseases are mainly due to pathogenic bacteria, parasites and viruses which creates health risk associated with drinking-water.
The recent public health burden is determined by the severity and incidence of the illnesses associated with it, diseases outcome are more severe creating chronic health effects. It often aggregated and have the capability to multiply in their host"
