good evening , by the symptoms u suggested and most of the lab reports are within normal range , i feel this is fever of unknown origin or a prolonged viral fever
. but still some tests have to be done and few tests have to be repeated - tests to be done are urine routine, blood for culture and senitivity and a chest x ray
IgG and IgM.. tests which have to repeated are the plate let count , and WIDAL
. since ur previous reports dosent include urine examination, i strongly recommend for one. till then maintain his hydration , his nutrition, and keep giving him warm water sponge baths to reduce fever and prevent febrile seizures
. review with ur doctor and get his blood pressure checked. will review with ur reports.