Hello, thank you for posting your query here. Did your uncle take the complete course of antibiotics for typhoid ?From the symptoms you be described with low grade fever and headache, my opinion is that he is having a viral illness now. You can ask him to wait for 2-3 days, and if fever persists, to do a blood culture and start on a course of antibiotics (what he took last time for typhoid). Importantly, ask him to take a vaccine for typhoid a month after recovery, as infection with typhoid does not protect against typhoid recurring in the future . Hygiene and hand washing before eating food, after using the toilet is to be stressed upon. As is drinking boiled water, avoiding juices and uncooked food outside as much as possible. Hope he gets better soon.