Final answer:
Recklessly exposing the public to communicable diseases is a public health risk. Infectious diseases can easily spread from person to person and pose a threat to the population. The example of the measles outbreak in the United States demonstrates the importance of public health measures to prevent transmission.
Step-by-step explanation:
Recklessly exposing the public to communicable diseases is a public health risk. Infectious diseases, also known as communicable diseases, can easily spread from person to person and pose a threat to the health of the population. This can happen when individuals do not take proper precautions to prevent the transmission of the disease, such as not getting vaccinated or not following proper hygiene practices.
A real-life example is the outbreak of measles in various parts of the United States. Measles, once declared eliminated, resurfaced due to unvaccinated individuals who were exposed to the disease and transmitted it to others. This outbreak serves as a reminder of the importance of public health measures to prevent the transmission of communicable diseases.