Hi, Thanks for posting in HCM. I understand your concern. Typhoid and paratyphoid fevers are commonly grouped together under the collective term enteric fever . Typhoid is caused by Salmonella typhi and paratyphoid is caused by either Salmonella paratyphi A, B, or C. WIDAL test is a presumptive serological test for enteric fever. Widal Test is an agglutination test which detects the presence of serum agglutinins (H and O) in patients serum with typhoid and paratyphoid fever. If the titre shows 1:100 or more for O agglutinations and 1:200 or more for H agglutination, it should be considered as clinically significant and indicative of active infection. Hence, from the above report you have furnished, it is evident that he is suffering from typhoid. Typhoid fever is treated with a course of oral antibiotics which kill the Salmonella bacteria. Several antibiotics are effective for the treatment of typhoid fever. The choice of antibiotics is guided by identifying the geographic region where the infection was contracted. With appropriate antibiotic therapy, there is usually improvement within one to two days and recovery within seven to 10 days. Along with antibiotics, you need to consume bland diet for at least 3 weeks to make sure the relapse does not take place. Hope the information provided would be helpful. All the best.