This study guide is intended for you to use while you are doing the assigned text reading. Quiz questions will be made with reference to topics in this study guide. Epidemiologists must track not only the types of diseases present but also understand their dynamics . A number of terms help to distinguish different patterns of disease spread.
Epidemiologists rely on statistical data.
A streptococcal infection in the United States. In order to track any disease, epidemiologists must identify the reservoir , the transmission route, the period during which infected hosts act as carriers , and the pathway for exit from infected hosts. Give an example of a disease which has been effectively controlled by each of these approaches, and another disease which has not.