Public Health and Infectious Diseases
Emerging infectious diseases could also be defined as diseases being caused by pathogens only recently recognized to exist. This group of diseases is vital globally, and therefore the experience of the last 30 years suggests that new emerging diseases are likely to bedevil us. because the global climate changes, so changes the environment, which may support not only the pathogens, but also their vectors of transmission. This expands the exposure and effects of communicable disease and, therefore, the importance of widespread understanding of the connection between public health and communicable disease.