The current rapid enteric fever diagnostics test that are used globally are those that detect immunoglobulin antibodies IgG or IgM. Blood samples are mostly used for diagnosis and stool samples are avoided due to asymptomatic faecal shedding following the infection. In low-resource settings, Widal test has been the oldest and most popular method that tests antibodies against the O and H antigen of S.typi . The commercially available rapid serological tests like Typhidot (Malaysian Bioduagnostic Research Sdn Bhdd, KL, Malaysia) that detects the antibody against the S.typhi outer-membrane protein \cite{Choo1999}, Tubex TF (IDL Biotech, Sollentuna, Sweden) detects antibody against LPS antigen \cite{Lim1998,Tam_2003}an. add more or stop? However, serological testing has been demonstrated to have poor sensitivity and inadequate specificity \cite{Wijedoru_2017} . WIDAL test has been also demonstrated to be an due to (a) cross-reactivity with antibody from many other infections (b) establishing a baseline in the population where the infection is endemic and actively vaccinated \cite{Olopoenia2000}. Serological testing has been more widely used than nucleic acid testing (NAT) due to the simplicity of the test design and cost while compared to NAT which require laboratory facility. While NAT tests have higher sensitivity and specificity, the NAT for enteric fever are not in use and the studies that are explored are limited to PCR , real-time PCR and loop mediated isothermal amplification (LAMP) \cite{Kaur_2018,Fan2015,Nga2010,Tennant2015,Frickmann_2019,Francois2011})(complete ref).