Table 1.

Outbreaks of emerging and reemerging respiratory viral infections.

Virus	Year	Region
Spanish Flu H1N1	1918	Spain [25]
Asian flu H2N2	1956	East Asia [28]
HCoV-229E HCoV-OC43	1960	The different part of the World [29]
Hong Kong Flu H3N2	1968	Hong Kong [28]
Hantavirus pulmonary syndrome	1993	USA [16]
Influenza A H5N1	1997	Hong Kong [28]
Influenza A H9N2	1999	Hong Kong [28]
Human metapneumovirus	2001	Netherlands [18]
SARS CoV	2002–2003	Guangdong, China [22]
Human CoV NL63	2004	Netherlands [20]
Influenza A H7N7	2004	Netherlands [28]
Human CoV HKU1	2005	China [20]
Triple reassortant H3N2 Influenza A	2005	Canada [28]
Bocavirus	2005	Sweden [19]
Influenza A H1N1 pmd09	2009	Mexico [28]
Adenovirus 14	2010	USA [30]
Influenza (H3N2)v	2011	USA [9]
MERS-CoV	2012	Saudi Arabia [23]
Influenza A H7N9	2013	China [28]
Influenza A H10N7	2014	China [28]
SARS-CoV-2	2019	China [26]