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1; well they protect all the cells form microscopic invaders.2;The immune system is a system of biological structures and processes within an organism that protects against disease.3:The human immune system is our protector its job is to defend...
Ebola virus diseaseEbola is a::an infectious and generally fatal disease marked by fever and severe internal bleeding, spread through contact with infected body fluids by a filo-virus ( Ebola virus ), whose normal host species is unknown.