Typhoid fever is a serious bacterial infection caused by Salmonella Typhi. It is transmitted through contaminated food and water and is more common in areas with poor sanitation and limited access to clean water. Without proper treatment, typhoid fever can be life-threatening. The infection is typically spread through ingestion of food or water contaminated with the feces of an infected person. Poor sanitation and hygiene practices increase the risk of transmission. Typhoid fever is treated with antibiotics. The choice of antibiotic may vary based on local resistance patterns.