Table 1.

Interpretation of serologic test.

	IgG	IgM	Donation status
1	Positive	Positive	*Therapeutic use
2	Positive	Negative	* Therapeutic use
3	Negative	Negative	Nontherapeutic use
4	Negative	Positive	28-day deferral (donor can apply for donation 28 days later)

^*Related to male and nulliparous female donors.