Table 1.

Sample and final score for autoimmune pathogenesis of Rift Valley Fever virus retinitis, Kenya^*

Study group	Village	No.	No. tested	No. positive	Immunohistochemical scores	Group average
RVFV retinitis	Masalani	5	8	4	0.6, 0.7, 2, 2.16, 2.33	1.45
	Sangailu	3			0.83, 1, 2
RVFV unexposed with retinitis	Masalani	6	9	1	0, 0.5, 1.25, 1.33, 1.75, 1.75	1.24
	Sangailu	3			0.14, 1.6, 3
RVFV exposed without retinitis	Masalani	6	9	1	0, 0, 0.17, 0.5, 1, 1.25	0.67
	Sangailu	3			0, 0.75, 2.33
RVFV unexposed without retinitis	Masalani	9	17	3	0, 0, 0.25, 0.25, 0.75, 0.75, 1, 1.5, 2.33	1.09
	Sangailu	8			0, 1.2, 1.25, 1.25, 1.33, 1.5, 2.33, 3

^*RVFV = Rift Valley Fever virus. The nine positive scores (≥ 2) are indicted in boldface.