Rare Diseases Symptoms Automatic Extraction
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False positive malaria rapid diagnostic test in returning traveler with typhoid fever.
[typhoid]
Rapid
diagnostic
tests
play
a
pivotal
role
in
the
early
diagnosis
of
malaria
where
microscopy
or
polymerase
chain
reaction
are
not
immediately
available
.
We
report
the
case
of
a
39
year
old
traveler
to
Canada
who
presented
with
fever
,
headache
,
and
abdominal
pain
after
visiting
friends
and
relatives
in
India
.
While
in
India
,
the
individual
was
not
ill
and
had
no
signs
or
symptoms
of
malaria
.
Laboratory
testing
upon
his
return
to
Canada
identified
a
false
positive
malaria
rapid
diagnostic
(
BinaxNOW
®
malaria
)
result
for
P
.
falciparum
with
coincident
Salmonella
Typhi
bacteraemia
without
rheumatoid
or
autoimmune
factors
.
Rapid
diagnostic
test
false
positivity
for
malaria
coincided
with
the
presence
or
absence
of
Salmonella
Typhi
in
the
blood
.
Clinicians
should
be
aware
that
Salmonella
Typhi
infection
may
result
in
a
false
positive
malaria
rapid
diagnostic
test
.
The
mechanism
of
this
cross-reactivity
is
not
clear
.
