Acellulaire
Acellulaire is a term used in biology and medicine to describe something that lacks cells. In general, it refers to organisms or materials that do not contain intact cellular structures. The concept is distinct from cellular, which denotes the presence of cells.
In biology, several infectious agents are acellular. Viruses, viroids and prions are typically described as acellular
In medicine and tissue engineering, acellularity commonly refers to tissues or matrices from which cellular material
Acellular vaccines contain purified antigens rather than whole pathogens, reducing reactogenicity while potentially requiring multiple components
See also: cellular biology; decellularization; acellular vaccines; extracellular matrix.