Travel agents or agencies must have an identifying number called an IATA, or International Air Transport Association, number to work with travel suppliers such as tour operators and airlines. Having IATA accreditation simplifies the business relationship between travel suppliers and travel agents.
Shunt (medical) In medicine, a shunt is a hole or a small passage which moves, or allows movement of, fluid from one part of the body to another. The term may describe either congenital or acquired shunts; and acquired shunts (sometimes referred to as iatrogenic shunts) may be either biological or mechanical.
How It Works. A shunt usually consists of two catheters and a one-way valve. The valve regulates the amount, flow direction, and pressure of cerebrospinal fluid out of the brainâs ventricles. As the pressure of cerebrospinal fluid inside the brain increases, the one-way valve opens and the excessive fluid drains to the downstream cavity.