Previous Infection with Seasonal Coronaviruses Does Not Protect Male Syrian Hamsters from Challenge with SARS-CoV-2

Hamsters were initially inoculated with seasonal coronaviruses, or SARS-CoV-2 pango B lineage virus, then challenged with SARS-CoV-2 pango B lineage virus, or SARS-CoV-2 variants Beta or Omicron.