MY FATHER IN LAW AGED 77YRS IS SUFFERING FROM ILD FROM LAST 2 YEARS .HE IS HAVING LOW GRADE FEVER DAILY RANGING BETWEEN 99F-100F IN THE AFTERNOON.DOC TREATED HIM FOR TB    8-9 MONTHS . PRESENTLY IN ELISA TEST TB IS NEGATIVE BUT WIDAL TEST SHOWS POSITIVE.PLZ SUGGEST PROPER TREATMENT.
Hello dear, Thank you for your contact to Chat Doctor. I read and understand your concern. I am Chat Doctor answering your concern. Your father is suffering from the typhoid fever. Tidal test is diagnostic test used for the typhoid fever, so you are having this infection. Though the ELISA test for TB is not having a good value your test is coming negative. So your father is having negative result for TB. I suggest you to start treatment with oral ciprofloxacin. Thereafter culture and sensitivity of the stool and blood for S.type is necessary as Chat Doctor. Taking