Public health | Definition, History, & Facts
public health, the art and science of preventing disease, prolonging life, and promoting physical and mental health, sanitation, personal hygiene,...
Definition
World Health Organization (WHO) | History, Organization, & Definition of Health
World Health Organization (WHO), specialized agency of the United Nations (UN) established in 1948 to further international cooperation for improved...
Infectious disease | Definition, Types, & Causes
The agents of infection can be divided into different groups on the basis of their size, biochemical characteristics, or manner...
