Evaluation of Patients for Zika Virus Infection in a Travel Clinic in the United States, 2016 Open Access
Valle, Javier (2017)
Abstract
Zika is an emerging infection that has challenged the U.S.
public health system.
Characterization of patients with possible and confirmed infection
is urgently needed to better
understand risks for infection in U.S. travelers and to inform
evolving evaluation guidelines. To
address these needs, we performed a retrospective electronic health
record (EHR) review of
patients evaluated for Zika virus (ZIKV) infection at an
academic-affiliated travel clinic in Atlanta,
Georgia from January 1 through August 31, 2016. We evaluated 46
patients who presented to
the clinic during this period for evaluation of possible ZIKV
infection, including patients with ZIKV
infection symptoms, asymptomatic patients with possible exposure to
ZIKV, and referral visits
for ZIKV testing.
Among the 46 patients evaluated, 30 (65.2%) were tested for ZIKV,
of which 8 patients
(17.4%) had laboratory evidence of infection (7 confirmed, 1
probable). Among those who were
tested for ZIKV, the three most frequent symptoms reported were
headache (86.7%), Rash
(76.7%), and fever (66.7%). Among patients who were tested for
ZIKV, rash and headache were
the most sensitive predictors of having laboratory evidence of
infection (100% each). Having ≥3
positive ZIKV-related symptoms had a sensitivity of 88% (95% CI:
47%-100%) and a specificity of
50% (95% CI: 28%-72%) for having laboratory evidence of Zika (+LR:
1.75). Our findings may
assist clinicians and public health agencies in addressing timely
clinical decision making for ZIKV
testing.
Table of Contents
- Introduction: pp. 1-2
- Methods: pp. 2-4
- Results: pp. 4-7
- Discussion: pp. 8-12
- References: pp. 13-14
- Figures and Tables: pp. 15-21
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