Detection and characterisation of high pathogenicity avian influenza virus (H5N1/H5N8) clade 2.3.4.4b, Hong Kong SAR, China, 2021 to 2024.

We isolated three genotypes of highly pathogenic avian influenza virus (HPAIV) clade 2.3.4.

Family Caregivers' Perceptions and Experiences of Supporting Older People to Cope With Loneliness: A Qualitative Interview Study.

Loneliness has become a significant public health issue among community-dwelling older adults particularly those with multimorbidity. Family caregivers are crucial care resources for dependent older adults living in the community before transitioning to institutional services. However, understanding of their perceptions in supporting older adults with multimorbidity to cope with loneliness is limited.

Reduced Pathogenicity and Transmission Potential of Omicron BA.1 and BA.2 Sublineages Compared with the Early Severe Acute Respiratory Syndrome Coronavirus 2 D614G Variant in Syrian Hamsters.

Background: The epidemiological advantage of Omicron variant is evidenced by its rapid spread and the ability to outcompete prior variants. Among Omicron sublineages, early outbreaks were dominated by BA.1, while BA.

Neutralizing Monoclonal Antibodies That Target the Spike Receptor Binding Domain Confer Fc Receptor-Independent Protection against SARS-CoV-2 Infection in Syrian Hamsters.

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike protein is the main target for neutralizing antibodies. These antibodies can be elicited through immunization or passively transferred as therapeutics in the form of convalescent-phase sera or monoclonal antibodies (MAbs). Potently neutralizing antibodies are expected to confer protection; however, it is unclear whether weakly neutralizing antibodies contribute to protection.