Characterization and comparison of immunity against MPXV for individuals infected with MPXV or vaccinated with modified vaccinia Ankara vaccines.

The 2022 Mpox virus (MPXV) outbreak revitalized questions about immunity against MPXV and vaccinia-based vaccines (VAC-V), but studies are limited. We analyzed immunity against MPXV in individuals infected with MPXV or vaccinated with the licensed modified vaccinia Ankara (MVA) Bavarian Nordic or an experimental MVA-HIVB vaccine. The frequency of neutralizing antibody responders was higher among MPXV-infected individuals than MVA vaccinees.

First report of the deer ked, Lipoptena cervi, and associated pathogens in southern Québec, Canada.

Deer keds (Lipoptena cervi), an introduced European species, are expanding their geographic range in North America. We document their first recorded presence in Québec, Canada, map their distribution, and highlight the detection of pathogens of potential public health relevance. In the Estrie region of southern Québec, 47 deer keds (L.