Malaria Parasitemia and Severe Health Complications in Children Under Five Years of Age in Nigeria: A Study Using the Demographic and Health Survey (DHS) Malaria Indicator Survey (MIS) 2021.

Background: In Nigeria, 97% of the population is at risk of contracting malaria. It is transmitted by female mosquitoes carrying the parasite and can be lethal. An estimated 55 million illnesses and 80,000 deaths per year result from it.

Broad immunogenicity to prior SARS-CoV-2 strains and JN.1 variant elicited by XBB.1.5 vaccination in nursing home residents.

Background: SARS-CoV-2 vaccination has reduced hospitalization and mortality for nursing home residents (NHRs). However, emerging variants coupled with waning immunity, immunosenescence, and variability of vaccine efficacy undermine vaccine effectiveness. We therefore need to update our understanding of the immunogenicity of the most recent XBB.