Suspected Cases of Herpes Zoster
A suspected case of herpes zoster was defined as
new unilateral rash with pain (broadly defined to
include allodynia, pruritus, or other sensations)
that had no alternative diagnosis. Participants
were instructed on how to recognize signs and
symptoms of herpes zoster and to contact their
study site immediately if any developed. They
were required to record their symptoms on a specific
diary card. Investigators were to examine
suspected cases of herpes zoster within 48 hours,
if possible.