Early estimates show the 2023-24 updated monovalent XBB.1.5 COVID-19 vaccine offers significant protection against symptomatic infection, with effectiveness varying by age and time since vaccination.
People With HIV Had Only a Modest Reduction in Death During Omicron Wave
BRISBANE, Australia — While Omicron was generally considered to be a milder strain of SARS-CoV-2 that led to fewer deaths, there was scant relief for