TABLE 1.

Results of IFATs with various B. microti strains

Serum	Reciprocal titer against:
	Kobe	Gray-Mo	GI	AJ
Patienta	12,800	100	50	50
Donorb	25,600	100	100	100
Anti-Gray-Mo	100	25,600	12,800	12,800
Anti-GI	100	12,800	12,800	12,800
Anti-AJ	100	12,800	12,800	25,600

^aSerum sample obtained 5 months after the start of quinine and clindamycin treatments. 

^bSerum sample obtained at the time of blood donation.