Graaf A, Piesche R, Sehl-Ewert J, Grund C, Pohlmann A, Beer M, Harder T. Low Susceptibility of Pigs against Experimental Infection with HPAI Virus H5N1 Clade 2.3.4.4b.
Emerg Infect Dis 2023;
29:1492-1495. [PMID:
37347930 PMCID:
PMC10310384 DOI:
10.3201/eid2907.230296]
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Abstract
We found that nasal and alimentary experimental exposure of pigs to highly pathogenic avian influenza virus H5N1 clade 2.3.4.4b was associated with marginal viral replication, without inducing any clinical manifestation or pathological changes. Only 1 of 8 pigs seroconverted, pointing to high resistance of pigs to clade 2.3.4.4b infection.
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