Avian Influenza A(H5N1) Neuraminidase Inhibition Antibodies in Healthy Adults after Exposure to Influenza A(H1N1)pdm09
Pavithra Daulagala, Samuel M. S. Cheng, Alex W. H. Chin, Leo L.H. Luk, Kathy Leung, Joseph T. Wu, Leo L. M. Poon, Malik Peiris, Hui‐Ling Yen
Abstract
We detected high titers of cross-reactive neuraminidase inhibition antibodies to influenza A(H5N1) virus clade 2.3.4.4b in 96.8% (61/63) of serum samples from healthy adults in Hong Kong in 2020. In contrast, antibodies at low titers were detected in 42% (21/50) of serum samples collected in 2009. Influenza A(H1N1)pdm09 and A(H5N1) titers were correlated.
Topics & Concepts
NeuraminidaseInfluenza A virus subtype H5N1VirologyTiterAntibodyInfluenza A virusAntibody titerVirusNeuraminidase inhibitorBiologyMedicineImmunologyCoronavirus disease 2019 (COVID-19)Internal medicineInfectious disease (medical specialty)DiseaseInfluenza Virus Research StudiesViral gastroenteritis research and epidemiologyAnimal Disease Management and Epidemiology