Table 3.

Geographic heterogeneity in the distribution of anti-JCV and anti-BKV titers in the Yanomama

Titer	Area
	Northwest		Southwest		East		Total
	JCV	BKV	JCV	BKV	JCV	BKV	JCV	BKV
<1/40	29	31	80	71	12	17	121	119
1/40	10	4	15	12	9	7	34	23
1/80	2	0	8	0	4	3	14	3
≥1/160	0	0	4	1	2	0	6	1
Total	41	35	107	84	27	27	175	146