Hello, Thank you for your question. Enteric fever is a fever caused by an infection with types of bacteria called Salmonella Typhi and Salmonella Paratyphi. Enteric fever is also called typhoid fever or paratyphoid fever . The fever usually happens along with belly pain, chills, fever, rose spots( faint, salmon-colored spots on the belly and trunk). To find out if you are infected by the bacteria that cause enteric fever, your doctor can order a culture test on your blood, stool, urine and skin from one of the rose spots. These tests do not always show for sure if you have enteric fever. Even if they are negative, your doctor might still decide to treat you for enteric fever based on your symptoms and what part of the world you have been to. Treatment involves taking antibiotic pills for up to 2 weeks. People with severe illness might need to get antibiotics through an IV. If you are put on antibiotics to treat enteric fever, it is very important that you stay on the medicines for as long as your doctor recommends. Otherwise the infection could come back. There are 2 main ways to keep from getting enteric fever. 1. Get the vaccine before you travel. 2.Be careful what you eat and drink. Serologic tests such as the Widal test are of limited clinical utility in endemic areas because positive results may represent previous infection. The Widal test detects anti-S typhi antibodies, and the minimal titers defined as positive for the O (surface polysaccharide) antigen and H( flagellar) antigens must be determined for individual geographic areas. Hope I have answered your query. Let me know if I can assist you further. Best regards, Dr. Heanf Chan Raksmey, Genereal and Family Physician and Women Health Fellowship.