Rebecca Chambers é uma personagem jogável que é mordida mas não está infectada.
A Wiki do Resident Evil afirma:
The chances of a human bitten by a t-Virus carrier (specifically a zombie) to be infected was 90% in the 1980s, though it is unknown if the Arklay Laboratory team (or any other branches in the virological bio-weapons project, for that matter) succeeded in increasing the chances of infection to Umbrella CEO Oswell E. Spencer's satisfaction.[10] The lack of infection when Rebecca Chambers was bitten by an Eliminator could suggest that she was lucky enough to be naturally immune, or simply that t-Virus failed to enter her body when she was bitten.
Jill Valentine também foi infectada como resultado de sua luta com Nemesis, ela acabou recebendo uma vacina que lhe permitiu Totalmente recuperar.
Jill faced Nemesis again in a battle outside the Clock Tower, where she was quickly infected with the t-Virus after the attack by Nemesis' tentacles...
...Jill regained consciousness and told Carlos that she has been infected by the virus. Carlos forced himself to search for Jill's cure or else she might become one of the undead. Jill also asked Carlos that if she turned into a zombie, he should not hesitate to kill her. After Carlos returned from a trip to the Raccoon General Hospital to find the vaccine, Jill was administered with the serum by Carlos and fully recovered.
Pode haver mais. Eu não estou familiarizado com todos os jogos ou personagens.
Para a questão de por que quando se joga se seu personagem é ferido por que não está imediatamente infectado?
While it may make for an interesting game mechanic to have your player get infected and die if ever injured, it sure would make the game hard. Since the game protagonists are expected to survive to the end, they logically won't become infected and die before that. - comments by Jack B. Nimble.