What could cause a person to get sudden chills?
Chills are caused by the rapid contracting and relaxing of muscles. They can be caused by a number of conditions, including the onset of infection and fever. Though they can be a sign of such diseases as malaria, they're typically associated with such common ailments as colds, flu, strep throat, and pneumonia.
Here is a link to information on chills, along with some other information you might find helpful.
Is it a Cold? The Flu? Allergies? Bronchitis?
All the best,
Lisa Nelson RD
Heart Healthy Tips