Think about where you might like to live after graduation. Try to do an internship in or around that city to make contacts for after graduation. Consider working for employers who have previously worked with interns. These employers are familiar with how to best utilize interns. Find a faculty member who will be available to supervise you during the term.
Some departments assign a particular faculty member to supervise students.
Check with your department or the internship coordinator for specifics. Attend a 15-minute mandatory orientation in the CDC and obtain paperwork in order to receive academic credit. Check with the CDC for dates and times. Contact alumni mentors for informational interviews and additional leads. Follow up on any lead within 24 hours.