TABLE 1.

Frame-by-frame measurements for six individual virions

Frame no.a	Distance (μm) moved by virion:
	A	B	C	D	E	F
1	2.79	0.67	0.49	0.42	0.43	1.23
2	0.00	0.00	1.79	0.00	0.00	0.93
3	0.00	0.60	0.00	0.00	0.81	0.81
4	0.00	0.00	0.91	0.21	0.76	0.00
5	0.54	1.73	0.00	0.39	0.87	0.95
6	0.47	0.00	0.00	1.28	0.41	0.69
7	0.00	0.00	1.13	0.30	0.47	0.00
8	0.57	0.87	0.00	0.52	0.84	0.76
9	0.80	0.00	0.87	0.00	0.00	0.78
10	0.67	1.41	0.34	0.00	0.00	1.59
11	0.61	0.57	1.02	0.67	0.33	0.00
12	0.48	1.15	1.50	0.24	0.48	0.52
13	0.67	0.00	0.39	0.20	0.80
14	0.00	1.01	0.00	0.00	0.87
15	1.76	0.94	0.00	0.24	0.89
16	0.94	0.00	0.00	0.00	0.27
17		1.65	0.00	0.48	2.36
18		0.51	0.00	0.39	0.43
19		0.00	1.07		1.46
20		0.49			0.85
21		0.63
Total (μm)	10.30	12.20	9.50	5.33	13.32	8.25
Time (s)	16	21	19	18	20	12
Speed (μm/s)	0.64	0.58	0.50	0.30	0.67	0.69

^aFrame rate, one frame per second.