what about raging-alive-rabies like zombies as seen in 28 days later, Quarantine, and left4dead
well there infected by a disease
- a disordered or incorrectly functioning organ, part, structure, or system of the body resulting from the effect of genetic or developmental errors, infection, poisons, nutritional deficiency or imbalance, toxicity, or unfavorable environmental factors; illness; sickness; ailment.
-any harmful, depraved, or morbid condition, as of the mind or society: His fascination with executions is a disease.
-decomposition of a material under special circumstances: tin disease.
and not a parasite
-An organism that lives in or on another organism (its host) and benefits by deriving nutrients at the host's expense.
and as for the person being alive or dead
are you asking if the dead reanimate ?
or if the living can become affected and keep going under certain deress
its a matter of brain chemicals , if they are jacked on testosterone , epinephrine (which is adrenailin) and nor epinephrine alone
thats enough to keep them moving in a blind fury of rage , if the said disease caused this flushing of chemicals
thats why you would have to shoot them in the head
and why i think they would also want brains cause u could easily access more of those chemicals from other brains and flesh has testosterone in it so that makes sense to
and thats without other chemicals like dopeamine , I doubt seretonin wouldnt play much of an integral part of the process
and then there is the incubation period
if its a few hours not much can happen
but a few months like contagion and it could re develop organs
ur classifying everything by games and movies
life is not disney
and even if we talk about resident evil genetically altered humans an animals , refer to my previous statement of brain chemical modification
but i think u would have to mix it with Creutzfeldt–Jakob disease
KURU DISEASE,Gerstmann–Sträussler–Scheinker syndrome,Fatal familial insomnia, these are all prion
meaning Protein Infection ,A prion
i/ˈpriːɒn/ is an infectious agent composed of protein in a misfolded form. This is in contrast to all other known infectious agents (virus/bacteria/fungus/parasite) which must contain nucleic acids (either DNA, RNA, or both).
mad cow disease and other forms of Neurodegeneration
any one of them or crossbreed