And old peoples diseased death rate is much higher than the natural death rate.

而老年人因病死亡率比自然死亡率高之甚多。

youdao

As a sports person. The task in front of us is very arduous. That is how to overcome the disease and improve the natural death rate.

作为一个体育人，摆在我们面前的任务很艰巨，那就是如何战胜疾病，提高自然死亡率。

youdao

Compared to the analagous January-July period of 2011, the birth rate increased by 6.7%, the death rate decreased by 2.9%, and the rate of natural population loss plummeted by 60% (from 138, 000 in 2011 to just 57, 000 in 2012).

FORBES: Russia is on Track to Record Natural Population Growth in 2012

He suggested it was possible that "natural variation" in the rate of cot death could be responsible for the vast improvements seen around the time the new advice was introduced.

BBC: NEWS | Health | Infant death 'doubts' challenged

Both the change in the death rate and the change in the infection rate are partly a consequence of the natural flow and ebb of any epidemic infection.

ECONOMIST: AIDS