id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
aji-144	N.N., Agbiji,; M.O, Ekong,	An Overview of Antigen Properties, Classifications and Mechanisms of Action	2024	8	.pdf	application/pdf	4378	455	52	Antigens are necessary building blocks of complexes of antigen and antibody, which are used in forensic analyses to identify human blood as well as additional materials. 5.1 Types of Antigen According to Origin Antigens can be divided into two categories according to their origin 5.1.1 Exogenous antigen Exogenous antigens are antigens which are foreign to their host and can enter the body by ingestion, inhalation, or injection; they can then move throughout the body through bodily fluids; the absorption of foreign antigen is principally carried out by Antigen Processing Cells (APCs) via phagocytosis, such as dendritic cells and macrophages.	cache/aji-144.pdf	txt/aji-144.txt