<s>[INST] husband had severe flu symptoms 10 days ago still having fever and chills not everyday but becoming very weak and run down.white bld count 19 but with antibiotic down to 12took ct scan nothing abnormal no sign of cancer(prostrate surgery in Nov, nothing outside prostrate and no further treatment needed other than routine bld work and exams) [/INST] Hellos you mentioned that there is fever with chills, weakness, ( prostate surgery), WBC come down, such symptoms may be due to these reasons, these include:1 Typhoid fever, diagnosis can be confirmed by Tidal test and serology test.2 Tuberculosis, in this age group fever with milf chills more than 10 days should be examined for tuberculosis. Diagnosis can be confirmed by X-ray chest and CBC (still 12000 /CMM) 3 Urinary tract infection very common after prostate surgery. Get in urine culture and Chat Doctor. In my opinion this is not viral fever, if it had been, cured earlier. So consult a physician and get his opinion. However, there are so many other causes of such symptoms but deal as mentioned above. Good luck. </s>