A patient complained of chills and fever following a louse bite 2 weeks before.He had rashes all over the body and was delirious at the time of presentation to the hospital and subsequently went into coma.A provisional diagnosis of vasculitis due to Rickettsial infection was made.Which one of the following can be causative agent:

A patient complained of chills and fever following a louse bite 2 week

1.	A patient complained of chills and fever following a louse bite 2 weeks before.He had rashes all over the body and was delirious at the time of presentation to the hospital and subsequently went into coma.A provisional diagnosis of vasculitis due to Rickettsial infection was made.Which one of the following can be causative agent:
A.	Rickettsia rickettsiae
B.	Rickettsia typhi
C.	Rickettsia akarai
D.	Rickettsia prowazekii
Answer» E.