Skip directly to site content Skip directly to page options Skip directly to A-Z link Skip directly to A-Z link Skip directly to A-Z link
Volume 27, Number 3—March 2021

Human Infection with Eurasian Avian-Like Swine Influenza A(H1N1) Virus, the Netherlands, September 2019

Anna Parys, Elien Vandoorn, Jacqueline King, Annika Graaf, Anne Pohlmann, Martin Beer, Timm Harder, and Kristien Van ReethComments to Author 
Author affiliations: Ghent University, Merelbeke, Belgium (A. Parys, E. Vandoorn, K. Van Reeth); Friedrich-Loeffler-Institut, Greifswald Insel-Riems, Germany (J. King, A. Graaf, A. Pohlmann, M. Beer, T. Harder)

Main Article

Table 1

Cross-reactivity in virus neutralization tests between isolates from a pig farmer and his pigs and reference swine H1N1, pH1N1, H1N2 and H3N2 viruses*

Virus Subtype H1 clade Virus neutralization titer for swine antiserum†
swBe98 swG10 Ca09 swG99 swG12 swFl98 swG08
swBe98 H1N1 1C.2 4,096 256 96 32 <4 <4 <4
swG10 H1N1 1C.2.1 48 768 12 <4 <4 <4 <4
Ca09 pH1N1 1A.3.3.2 12 96 1,536 <4 <4 <4 <4
swG99 H1N2 1B.1.2.1 6 <4 4 1,024 768 <4 <4
swG12 H1N2 1B.1.2.1 <4 <4 6 768 1,536 <4 <4
swFl98 H3N2 NA <4 <4 4 <4 <4 8,129 512
swG08 H3N2 NA <4 <4 <4 <4 <4 3,072 768
Ne19 H1N1v 1C.2.2 128 64 8 <4 <4 <4 <4
swNe19 H1N1 1C.2.2 256 384 1,536 8 <4 <4 <4

*Ne19 indicates isolate from the farmer; swNe19 indicates the isolate from the pigs. Homologous titers are indicated in bold. H1N1v, H1N1 variant; NA, not applicable; pH1N1, influenza A(H1N1)pdm09; swBe98, A/swine/Belgium/1/98; swG10, A/swine/Gent/28/2010; Ca09, A/California/04/2009; swG99, A/swine/Gent/7625/99; swG12, A/swine/Gent/26/2012; swFl98, A/swine/Flanders/1/98; swG08, A/swine/Gent/172/2008; Ne19, A/Netherlands/Gent-193/2019; swNe19, A/swine/Netherlands/Gent-193/2019.
†Swine antiserum was obtained by a double vaccination with whole inactivated virus vaccines.

Main Article

Page created: December 10, 2020
Page updated: February 21, 2021
Page reviewed: February 21, 2021
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.