The vaccine works by causing the body to attack these plaques by producing more antibodies, Till Jelitto, a spokesman for Affiris, told AFP.
Although the exact mechanism of action is unclear, the prostaglandins may work by causing smooth muscle contraction of the blood vessels in the mucosa and submucosa, through membrane stabilisation, or by induction of haemostasis with platelet aggregation [ 58].
These drugs basically work by causing a decrease in appetite.
Putnam [ 55] speaks of the standard of generalized reciprocity; these standards ensure that hospital employees work together by causing them to behave cooperatively [ 54].
The animal's venom works by causing tiny clots in the blood, stopping the blood from clotting inside the body and making its victim bleed to death.
Triptans work by causing blood vessels in the brain to constrict and change blood flow, and can often stop a migraine completely or reduce its severity if taken in the early minutes of an attack.
A: Today's flu vaccines work by causing the body to develop antibodies to hemagglutinin (HA), a protein that covers the surface of the influenza virus.
Since these live vaccines work by causing 'infection' in the host, it is also difficult, or impossible, to design serological assays that will reliably distinguish (naturally) infected and vaccinated animals ('DIVA'), making surveillance more difficult or more expensive.
