45 year old male patient,working as security came to the casuality with the chief complaints of fever and yellowish discolouration of eyes and urine since 10 days . In 2008 , Patient got admitted in hospital for fever ,he was diagnosed of having jaundice and on medications for 3 months regularly. Patient was apparently asymptomatic 10 days back then he developed fever after doing continuous night duties for a week . Fever ,is continuous ,associated with chills and rigors, relieved on medication( paracetamol,relieves for 1 hour and fever again progresses). No H/O headache , pedal edema , cough , cold , SOB,burning micturition , chest pain ,melena , night sweats . H/O mouth ulcers (lower lip) , since 5 days had past h/o mouth ulcers , which got relieved by themselves without using any medications . Not a k/c/o DM,HTN,thyroid ,epilepsy. K/c/o alcoholic and tobacco chew since 20yrs. Patient used to drink alcohol since 20yrs occasionally,but started drinking regularly...