1 Some virulent bacteria produce special proteins that allow them to colonize parts of the host body. 2  Helicobacter pylori is able to survive in the acidic environment of the human stomach by producing the enzyme urease.
rfid-Computer Definition. (R adio F requency ID entification) A data collection technology that uses electronic tags for storing data. The tag, also known as an electronic label, transponder or code plate, is made up of an RFID chip attached to an antenna.
The Rheumatoid Factor. The rheumatoid factor (RF) is an antibody in the blood linked to RA and other auto-immune diseases. While high levels of RF in a patient's system may suggest that the patient has or will develop RA in the future, the RF test is not a sole indicator.