Reservoir of infection
Any person, animal, plant, soil or substance in which an infectious agent normally lives and multiplies. The reservoir typically harbors the infectious agent without injury to itself and serves as a source from which other individuals can be infected. The infectious agent primarily depends on the reservoir for its survival. It is from the reservoir that the infectious substance is transmitted to a human or another susceptible host.
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- Reservoir, Ommaya
A device that is implanted under the scalp to deliver anticancer drugs to the fluid surrounding the brain and spinal cord.
- Resident
In medicine, a physician who has finished medical school and is receiving training in a specialized area, such as surgery, internal medicine, pathology, or radiology. Board certification in all medical and surgical specialties requires the satisfactory completion of a residency program and successful completion of a specialty board examination.
- Residual
Something left behind. With residual disease, the disease has not been eradicated.
- Resin, bile acid
QUESTRAN) and colestipol (COLESTID) are the two main bile acid resins currently available. These two drugs are available as powders or tablets. They are not absorbed from the gastrointestinal tract and decades of experience with the resins indicate that their long-term use is safe. Bile acid resin powders must be mixed with water or fruit […]
- Resistance
Opposition to something, or the ability to withstand something. For example, some forms of the staphylococcus bacterium are resistant to treatment with antibiotics.