Enteric fever still remains a major endemic problem in India. Isolation of Genus Salmonella organisms from patients samples is the gold standard, however it is well recognized that facilities for culture are not readily available or limited in many areas. Although the culture method is gold standard, it is however time consuming, expensive and the culture positive cases are also very less hence serological testing for Salmonella antibodies is also essential. In this book to study the reliability of a single Widal test and to find out the diagnostic significance of anti O & anti H agglutinin...