Table 2.
Behaviors to mitigate transmission of COVID-19 covered in widely viewed YouTube videos by source in March 2020.
| Prevention behaviors | Total | Consumer | Professional | News | Entertainment | |||||
|  | Total number of views (%)a | Total number of videos | Number of views (%)b | Number of videos (%)b | Number of views (%)b | Number of videos (%)b | Number of views (%)b | Number of videos (%)b | Number of views (%)b | Number of videos (%)b | 
| Overall | 355,212,487 (100) | 100 | 66,303,762 (18.7) | 19 (19.0) | 15,213,523 (4.3) | 5 (5.0) | 80,055,511 (22.5) | 19 (19.0) | 193,639,691 (54.5) | 57 (57.0) | 
| Stay indoorsc | 160,105,457 (45.1) | 42 | 25,633,078 (16.0) | 6 (14.3) | 2,147,978 (1.3) | 1 (2.4) | 33,653,431 (21.0) | 7 (16.7) | 98,670,970 (61.6) | 28 (66.7) | 
| Hand hygiene | 182,331,135 (51.3) | 44 | 50,255,990 (27.6) | 11 (25.0) | 2,147,978 (1.2) | 1 (2.3) | 56,645,499 (31.1) | 12 (27.3) | 73,281,668 (40.2) | 20 (45.5) | 
| Avoid close contact with those who are sick | 97,013,939 (27.3) | 18 | 31,374,132 (32.3) | 4 (22.2) | 2,147,978 (2.2) | 1 (5.6) | 16,835,274 (17.4) | 3 (16.7) | 46,656,555 (48.1) | 10 (55.6) | 
| Stay home when ill | 163,220,603 (46.0) | 44 | 47,505,715 (29.1) | 10 (22.7) | 2,147,978 (1.3) | 1 (2.3) | 35,502,777 (21.8) | 7 (15.9) | 78,064,133 (47.8) | 26 (59.1) | 
| Cover cough/sneeze with tissue; throw tissue away | 98,060,105 (27.6) | 24 | 31,620,076 (32.2) | 8 (33.3) | 2,147,978 (2.2) | 1 (4.2) | 31,260,481 (31.9) | 6 (25.0) | 33,031,570 (33.7) | 9 (37.5) | 
| Use facemask for protection if you are caring for the ill | 26,881,257 (7.6) | 8 | 2,205,478 (8.2) | 1 (12.5) | 0 (0) | 0 (0) | 9,151,436 (34.0) | 1 (12.5) | 15,524,343 (57.8) | 6 (75.0) | 
| Use facemask for protecting others if you are ill | 13,491,951 (3.8) | 4 | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 9,151,436 (67.8) | 1 (25.0) | 4,340,515 (32.2) | 3 (75.0) | 
| Clean and disinfect highly touched objects and surfaces | 70,365,530 (19.8) | 15 | 34,705,722 (49.3) | 6 (40.0) | 2147978 (3.1) | 1 (6.7) | 15,191,934 (21.6) | 4 (26.7) | 18,319,896 (26.0) | 4 (26.7) | 
aColumn percentage.
bRow percentage.
cUniversal recommendation to stay indoors did not exist in January but was coded under Other Precautions.