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Influenza

1115

Ocular infectivity and replication of a clade 2.3.4.4b A(H5N1) influenza virus associated with human conjunctivitis in a dairy farm worker in the USA: an in-vitro and ferret study

Abstract Background: The human eye represents a potential site of influenza A virus (IAV) replication, and an entry point for the virus to reach the respiratory tract. The frequent detection of conjunctivitis among farm workers with confirmed infection with clade 2.3.4.4b A(H5N1) IAV from this ongoing outbreak represents an atypical disease presentation for this virus […]
1114

Replication Efficiency of Contemporary Highly Pathogenic Avian Influenza A(H5N1) Virus Isolates in Human Nasal Epithelium Model

Abstract Replication of influenza A virus in human nasal epithelium affects transmissibility and disease. We compared virus replication and immune responses in human nasal epithelium infected with seasonal and highly pathogenic avian influenza A(H5N1) viruses. Contemporary H5N1 viruses replicated better than the historical isolate; however, interferon response to B3.13 genotype viruses was dampened.