Zika's surface protein — the primary target of antibodies — looks extremely similar to those on dengue and West Nile virus, members of
the same flavivirus family.
Not exact matches
Unfortunately, many other viruses from the
same family, known as
flaviviruses, have similar versions of NS1 and can produce a false positive.
Zika and dengue are closely related and come from the
same family of viruses, known as
flaviviruses.