repeat widal test or send a blood culture

talk to your treating doctors to start therapy I am sure that they have

typhoid is a disease of foodpipe germs are in it and are excreted through body fluids like urine, saliva, sweat etc it's a water born disease and germs stay alive in cold temperatures too possible to get from milk and curds besides roadside eateries take proper rest, medicines and maintain hygiene through bath and wearing cotton Sweat carries germs Wash them clothes away every day to stop infections to Self and others eat light nourishment which doesn't cause distention lots of water and ors Tea and clear soups Eat or drink lots of seasonal vegetables soups etc diluted milk no fats or heavy meals