The latest CDC guidelines state that for situations in which a TST is preferred but an IGRA is acceptable
A TST is preferred for testing children aged <5 years.
They also state that
An IGRA is preferred for testing persons from groups that historically have low rates of returning to have TSTs read.
OK, according to an article in the
JNMA on children 1-18 years;
We note that the return rate for skin test results in this study was 65%. It is possible that the subjects who failed to return for their results had a higher reactivity rate than those who returned.
However, our return rate for skin test results is comparable to the upper limits reported in the literature for similar communities.
Low rates of return apply to
everybody
