Study Characteristics
Articles included in this review were published between 1998 and 2021. Only 1 of the 66 (1.5 %) articles were published between 1998 and 2000, while 15 of the 66 (22.7%) articles were published between 2001- 2010 with the remaining 50 (75.8%) articles being published between 2011- 2021 (Figure 3).
Of the 66 articles, 38 (57.6%) articles studied influenza viruses, of which 21 (55.3 %) were focused on influenza A or B, and 17 (44.7%) were conducted on avian influenza H5N1. In addition, 19 (28.8%) of the 66 total articles were conducted on coronaviruses. Of the 19 coronavirus papers, 17 (89.5%) articles studied the SARS-CoV-2 virus while 2 (10.5 %) studies were conducted on Middle East Respiratory Syndrome (MERS). Furthermore, 5 (7.6 %) of the 66 articles studied RSV and 2 (3.0 %) of the 66 articles studied enterovirus. Of the 2 enterovirus studies, 1 (50.0 %) was on human rhinovirus, and 1 (50.0 %) studied on coxsackievirus virus. Finally, 1 (1.5 %) out of the 66 total articles examined torque teno virus and 1 (1.5 %) study was conducted on cytomegalovirus.