TABLE 2.

Retinal vascular lesions as detected by direct ophthalmoscopic examination or FA in dogs infected with R.  rickettsii

Groupa	Avg. no. of lesions/dog detected on:
	PID 5		PID 12
	By direct ophthalmoscopy	By FA	By direct ophthalmoscopy	By FA
I (infection control)	0.5	0	5.75	2.75
II (doxycycline)	0.25	0	0.75	0
III (azithromycin)	0.25	0.25	1.25	2.5
IV (trovafloxacin)	0	0	0	0

^an = 4 dogs/group.