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Who identifies and tracks diseases as they occur in a group of people and develops methods to prevent or control the spread of diseases?

Epidemiologists are responsible for identifying and tracking diseases in a population. They analyze data to understand patterns of disease occurrence and develop strategies to prevent or control the spread of diseases.


What are three ways in which diseases can be transmitted?

Infectious diseases are caused by germs, such as viruses, bacteria, and parasites. Contagious or communicable diseases are those that can be spread from one person to another. Infectious diseases that commonly occur among children are often communicable or contagious and may spread very easily from person to person


Why is it better to use the term transmission when describing how diseases are spread rather than saying passed from person to person?

Using the term "transmission" is more accurate because it includes all possible mechanisms by which diseases can be spread, such as through air, water, or vector-borne routes, not just exclusively person-to-person. It also helps to convey the idea that diseases can be transmitted in various ways beyond direct contact between individuals.


What is the scope and significance communicable diseases?

The scope and significance of communicable diseases is that they are all illnesses that are caused by some kind of infectious agent. Communicable diseases are also called infectious diseases (or transmissible diseases).


What diseases can be spread by dirty needles?

Diseases that can be spread by dirty needles include HIV, hepatitis B, and hepatitis C. These viruses can be transmitted through contaminated blood that remains on the needle when it is shared with another person.

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