Question of the Week

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Question :

Posted On : 12 Jul 2026

Is it true that WIDAL can be a false positive in cases of malaria and dengue, if yes what is the explanation?

Expert Answer :

Answer Discussion :

M

Maria Laura Perez

0

yes it can be

2 Days ago

A

Ahmed Mhsn

0

yes can be

5 Days ago

R

Rajesh Kharat

0

rising titres will clear false positivity, as well as blood and stool culture

5 Days ago

P

Peter Binder

0

yes cross reactivity

5 Days ago

H

Harsha Sonak

0

yes, as it is a serological reaction, because of cross reactivity. also depends on the method used to do widal

5 Days ago

Answer 1

Yes, Widal can be positive in malaria and dengue. This is due to non-specific polyclonal B lymphocyte stimulation due to malaria was postulated to be responsible for this phenomenon.

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