major chronic infectious disease (e.g., hiv infection); major chronic non-infectious disease (e.g., type 2 diabetes, cancer); chronic medications; use of iron-containing mineral and vitamin supplementation 2 weeks prior to study start; covid-19 vaccine or confirmed covid-19 infection within the past 2 years menacwy vaccine in the past pregnant (confirmed by rapid test during screening) or lactating. malaria (confirmed by rapid test) à study start will be postponed

major chronic infectious disease (e.g., hiv infection); major chronic non-infectious disease (e.g., type 2 diabetes, cancer); chronic medications; use of iron-containing mineral and vitamin supplementation 2 weeks prior to study start; covid-19 vaccine or confirmed covid-19 infection within the past 2 years menacwy vaccine in the past pregnant (confirmed by rapid test during screening) or lactating. malaria (confirmed by rapid test) à study start will be postponed