Middle-aged adults and health care workers should receive which collection of immunizations?

Middle-aged adults and health care workers should receive following immunizations: tetanus-diphtheria-pertussis, hepatitis B vaccine once, and influenza vaccine annually.

Explanation:

Just like the new born and small children, middle-aged adults and health care workers should also receive immunizations. Vaccinations can always reduce the chance of getting ill. These vaccines work together with the natural defense mechanism of the body and help reduce the chance of getting that particular disease.

Since, protection from vaccines that were taken in the childhood lose the effectiveness over time, it is important for middle aged adults and healthcare workers to take vaccines or immunizations.

answer; calendar;

answer; the automatic system because it is a "gut reactor"