Sir, yesterday I had taken my blood widal test, in that salmonella typhi "o" and "h" positive 1:40 dilution. It s normal or kindly give clarification? And one more details for your reference, one week before also takend same test in that showing 1: 160 dilution then doctors advaised I had completed daily two times having injection(iv) 10 injection completed. I need clarification ...?