Hello
Meropene 500 mg three times in day is the best antibiotics in its class.
As you mentioned that you father is still having fever and cough also present .
Usually in typhoid , fever ranges from 99 F to 100 F ,but in your father case it is very high , even 103 , in my opinion the cause of fever is not typhoid .
Such
high fever with cough may be due to .
1
Tuberculosis , diagnosis can be confirmed by X ray chest with blood examination for C B C & E S R.
2 The next reason of such high fever with cough may be due to
pneumonitis , diagnosis can be confirmed by X ray chest and blood examination.
3 In your father case the
hemoglobin level was less so this in itself is the cause of fever . Now it is elevated but just because of
blood transfusion so consult a physician and get his opinion that , why such low level of hemoglobin was there .
Consult another physician and get his opinion.
Good luck.