title: Psychosis in paratyphoid fever - a case report from Australia.
abstract: OBJECTIVE
  Neuropsychiatric presentation in paratyphoid fever is not a well-known entity. In countries such as Australia, where the prevalence of enteric fever is one of the lowest, this presentation seems to be unlikely.
  
  
  METHODS
  We present a case that demonstrates the importance of considering this possibility in Australian context in returned travellers.
  
  
  RESULTS
  A young male, who recently returned to Australia from his home country in South East Asia, presented with abnormal behaviour in the context of febrile illness. His behaviour was characterised by grandiosity, aggression, hallucinatory behaviour and paranoia, along with disturbed biological functions. Detailed inpatient assessment revealed him to be suffering from Salmonella Paratyphi A infection and psychotic illness because of his general medical condition. Although his fever and inflammatory markers responded to antibiotics, antipsychotics were required for treatment of his mental health problems.
  
  
  CONCLUSIONS
  This case demonstrates that paratyphoid fever, which is considered to be a less common variant of enteric fever, can present with neuropsychiatric manifestations.
authors.affiliation: Department of Psychiatry, Werribee Mercy Hospital, Werribee, VIC, Australia rajasadhoo@gmail.com.
authors.forename: Raja
authors.initials: R
authors.lastname: Sadhu
authors.affiliation: Department of Medicine, Werribee Mercy Hospital, Werribee, VIC, Australia.
authors.forename: Amin
authors.initials: A
authors.lastname: Pourzehad Gilani
authors.affiliation: Department of Medicine, Werribee Mercy Hospital, Werribee, VIC, Australia.
authors.forename: Marc
authors.initials: M
authors.lastname: Lanteri
authors.affiliation: Department of Psychiatry, Werribee Mercy Hospital, Werribee, VIC, Australia.
authors.forename: Manoj
authors.initials: M
authors.lastname: Kumar
keywords: organic psychosis; paratyphoid fever; traveller