1 . Muscle tissue also tends to keep vaccine reactions localized at the injection site. If certain vaccines are injected into fat tissue, the chance of irritation and side effect increases because fat tissue has poor blood supply, leading to poor absorption of some vaccine components. Vaccines must be given in a muscle to avoid widespread side effect.
Yet another deciding factor in vaccine administration location is the size of the muscle as well as convenience.
What may the underlined word in the sixth paragraph mean?
A.Common feeling of sorrow. | B.Abnormal sensitivity to stimulation. |
C.Terrible wound in the muscle. | D.Absorption of vaccine components. |