The present study aims to evaluate the effect vaccination and oral administration of aqueous extract of artemisia herba alba on the immune status. forty laying hens (Lohman Brown. 1 year-old. body weight 1. https://www.bekindtopets.com/deal-alert-NHL-Winnipeg-Jets-Distressed-iPhone-13-Pro-Max-MagSafe-Case-p96268-great-save/