Answer:
Poverty
Step-by-step explanation:
The other factors are uncontrollable such as age (which continues to evolve with time), climate (which changes independently of man), and vaccination is a means of prevention against disease and not a factor. of risk.
In poor countries, we continue to die from diseases that have almost disappeared from rich countries. 1. million people a year, or diseases of lack of health infrastructure, such as diarrhoea that kills 1.8 million people (mostly young children) annually. AIDS is also ravaging (2.8 million deaths) and the epidemic requires considerable effort. Many other diseases receive much less attention, so every year, malaria kills 1.3 million people.