Table 4.

Shifting frequency of attention to various approaches regarding COVID-19.

Records	Categories	1949–2019 (18,451)	2020 (29,156)	Ratio (1.58)
3,290	Vaccination	2,415	875	0.36
2,120	Restrict exposure	351	1,769	5.04
1,183	Antiviral medications	211	972	4.61
1,028	Biotoxins	935	93	0.10
992	Iatrogenic	368	624	1.70
801	Lifestyle	256	545	2.13
159	Occupational/environmental	80	79	0.99
6	Psychological/social/economic	3	3	1.00