Epidemiologists are public health professionals who investigate patterns and causes of disease and injury in humans. They seek to reduce the risk and occurrence of negative health outcomes through community education and health policy.hey are often involved with education outreach and survey efforts in communities. Research epidemiologists typically work for universities or in affiliation with federal agencies such as the Centers for Disease Control and Prevention (CDC) or the National Institutes of Health (NIH).
So, sometimes when an elderly person passed peacefully and not altogether unexpectedly, coroners would simply declare that the deceased had died of ânatural causesâ or even âold age.â In these cases, there was always a more specific cause of death, but it may not have been determined or thought to be worth mentioning.
One can calculate the natural increase by subtracting the death rate per 1000 population from the birth rate per 1000 population: natural increase = birth rate-death rate. By: Chris. hi this is really urgent how do i work out the rate of natural increase if it... - Sun, May 25th 2008.