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. 2021 Mar;11(3):a038737. doi: 10.1101/cshperspect.a038737

Table 3.

Swine 1B test antigens in hemagglutination inhibition assays with monovalent ferret antisera

			Serastrain	A/Michigan/383/2018 H1N2^a,b	A/Brazil/11/1978
Clade	Global	Antigen	Clade	1B.2.1	Hu-Vac
delta.2^c	1B.2.1	A/swine/Michigan/A01104117/2018 H1N2^a,b		640
delta.2^c	1B.2.1	A/swine/Illinois/A02139356/2018 H1N2		160
delta.1A^c	1B.2.2.1	A/swine/South Dakota/A01481702/2014 H1N2		80
Hu-Vac	Human	A/Brazil/11/1978 H1N1			10,240
hu-like^c	1B.1.1	A/swine/England/208046/2018 H1N2			5120
hu-like^c	1B.1.1	A/swine/England/062058/2018 H1N2			2560
hu-like^c	1B.1.2	A/swine/Spain/45600-2/2017 H1N2			1280
hu-like^c	1B.1.2.1	A/swine/Spain/40340-2/2017 H1N2			5120

Blank cells are untested antigens and repeated sera reflect different antisera or testing that occurred at different laboratories.

^aA/swine/Michigan/A01104117/2018 HA represents A/Michigan/383/2018 H1N2v (100% AA identity HA1).

^bCVV or equivalent.

^cRepresents current swine strains.