If you are in any of the following at risk groups, we ask that you speak with your physician prior to participating.
1. 70 years old or older
2. Getting treatment that compromises ( weakens) your immune system (for example, chemotherapy, medication for transplants, corticosteroids, TNF inhibitors)
3. Having a condition that compromises (weakens) your immune system (for example, diabetes, emphysema, asthma, heart condition)
4. Regularly going to a hospital or health care setting for a treatment (for example, dialysis, surgery, cancer treatment)