Table 1.

Characteristics of YouTube videos that mention COVID-19 transmission (n = 128) over the course of 3 rounds of evaluation (January through June 2020)

	Round
	1	2	3
	N (%)	N (%)	N (%)
Total
Number videos	100	100	100
Video views	125,286,561	508,123,042	561,652,828
Transmission
Number videos	42	46	40
Video views	63,474,010 (50.7)	263,132,046 (51.8)	273,652,313 (48.7 )
Mean views [SD]	1,511,286 [1,162,742]	5,720,262 [4,396,297]	6,841,308 [5,589,645]
Range	506,008 − 6,210,622	1,653,232 − 22,316,264	1,662,930 − 25,498,934
Video length
Mean length [SD] (minutes)	8.3 [6.3]	10.7 [10.7]	11.8 [11.3]
Range	0.15–29.4	2.1–51.5	2.1–51.5
Source
Consumer	5 (11.9)	12 (26.1)	7 (17.5)
Professional	6 (14.3)	3 (6.5)	6 (15.0)
Television	22 (52.4)	28 (60.9)	24 (60.0)
Internet	9 (21.4)	3 (6.5)	3 (7.5)
Video language
English	32 (76.2)	38 (82.6)	36 (90.0)
Spanish	8 (19.0)	8 (17.4)	4 (10.0)
Other	2 (4.8)	0 (0.0)	0 (0.0)