Distribution of antibody titer against Salmonella enterica among healthy individuals in nepal.

Annals of Clinical Microbiology and Antimicrobials
Bharat M PokhrelJanak Koirala

Abstract

Enteric fever is an endemic problem in Nepal and Widal agglutination test is widely used for its diagnosis but a normal baseline titer in healthy population and cutoff values have not been established. We measured average baseline antibody titers against "O" and "H" antigens of Salmonella enterica serotype Typhi and "H" antigens of serotypes Paratyphi A and Paratyphi B among apparently healthy blood donors in Nepal. The antibody titers were measured using Standard Widal Confirmatory Quantitative Tube test. Among the 100 blood samples collected from healthy volunteers, 62 individuals had significant antibody titers (> or = 1:20) against one of the four antigens against S. enterica. Among 54 samples with an anti-O titer against serotype Typhi, 15 and 36 samples had titers of > or = 1:60 and > or = 1:40, respectively. A significant proportion (12% of all) had anti-O titer of > or = 1:80. Similarly, among the 59 samples demonstrating anti-H titers of > or = 1:20 to S. enterica serotype Typhi, 29 had a titer of > or = 1:80 and 12 had 1:160. For S. enterica serotypes Paratyphi A and B, anti-H titers of > or = 1:20 were found only in 12% and 3%, respectively, of all samples tested. When a single Widal agglutination titer is used for t...Continue Reading

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Citations

Nov 28, 2012·Nucleic Acids Research·Evelien WynendaeleBart De Spiegeleer
Nov 28, 2012·Clinical and Experimental Gastroenterology·Mohammad Khan
Jun 2, 2016·BMC Infectious Diseases·Anna KordeckaWojciech Kułak
Aug 10, 2011·The Journal of Small Animal Practice·A MateusK D C Stärk
Apr 28, 2016·The Clinical Neuropsychologist·Patrick Armistead-JehleJoseph F Kulas
Oct 31, 2017·International Journal of Microbiology·Rucha PatkiDhaneshwar Lanjewar
Jul 2, 2020·Diagnostics·Dina M Alhaj-QasemFatin Hamimi Mustafa
Jun 27, 2021·Infectious Diseases and Therapy·Han WangQun Luo

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