<prompt> Answer this question truthfullyWhat is the classification of fever in typhoid?  <response>: <reason> There is no established classification system for typhoid fever. However, typhoid fever may be classified informally as follows. Acute disease Sudden-onset Severe in nature Lasts 12 months Mostly symptomaticChronic disease Lasts 12 months Less severe Asymptomatic Spread infection to othersMild disease Early diagnosis and treatment Antibiotic susceptibility Absence of complicationsModerate to severe disease Late presentation Presence of complications Antibiotic resistanceHigh virulence factors PhoPphoQ genes CdtB protein Vi antigen-positive strainsLow virulence factors Absence of above factors Presence of following host factorsC282 mutation CFTR mutation 