Characteristics of Rheumatoid Arthritis include joint inflammation, but can also include other areas of the body. It is a systemic illness that can also include inflammation in tissues of the heart, lungs and eyes.

PPA can obtain whole blood and plasma samples from these patients when they become available to our network of clinicians. Some disease types may have a long backorder depending on the frequency of the disease occurrence in the general population. All samples come from fully consented IRB approved collections.