Salmonella typhi, the causative agent of typhoid fever, is approximately 50,000 years old. Assays that identify Salmonella antibodies or antigens support the diagnosis of typhoid fever, but these results should be confirmed with cultures or DNA evidence. The Widal test has been the anchor for diagnosis of typhoid fever for decades. It is used to quantify agglutinating antibodies against H and O antigens of S. typhi.
Identify the correct pair representing the causative agent of typhoid fever and the confirmatory test for typhoid.
NEET UG 2019 — Zoology Human Health and Diseases
2019mcqmedium
Identify the correct pair representing the causative agent of typhoid fever and the confirmatory test for typhoid.
Official previous-year question
Held on 30 Apr 2019 · Verified 9 Jul 2026.
Options
- A
Plasmodium vivax / UTI test
- B
Streptococcus pneumoniae / Widal test
- C
Salmonella typhi / Anthrone test
- D
Salmonella typhi / Widal test
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