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01.12.2018 | Study protocol | Ausgabe 1/2018 Open Access

BMC Infectious Diseases 1/2018

Study on the persistence of Zika virus (ZIKV) in body fluids of patients with ZIKV infection in Brazil

Zeitschrift:
BMC Infectious Diseases > Ausgabe 1/2018
Autoren:
Guilherme Amaral Calvet, Edna Oliveira Kara, Silvana Pereira Giozza, Camila Helena Aguiar Bôtto-Menezes, Philippe Gaillard, Rafael Freitas de Oliveira Franca, Marcus Vinicius Guimarães de Lacerda, Marcia da Costa Castilho, Patrícia Brasil, Patrícia Carvalho de Sequeira, Maeve Brito de Mello, Ximena Pamela Diaz Bermudez, Kayvon Modjarrad, Robyn Meurant, Sihem Landoulsi, Adele Schwartz Benzaken, Ana Maria Bispo de Filippis, Nathalie Jeanne Nicole Broutet, for the ZIKABRA Study Team
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1186/​s12879-018-2965-4) contains supplementary material, which is available to authorized users.

Abstract

Background

Zika virus (ZIKV) has been identified in several body fluids of infected individuals. In most cases, it remained detected in blood from few days to 1 week after the onset of symptoms, and can persist longer in urine and in semen. ZIKV infection can have dramatic consequences such as microcephaly and Guillain-Barré syndrome. ZIKV sexual transmission has been documented. A better understanding of ZIKV presence and persistence across biologic compartments is needed to devise rational measures to prevent its transmission.

Methods

This observational cohort study will recruit non-pregnant participants aged 18 years and above with confirmed ZIKV infection [positive reverse transcriptase-polymerase chain reaction (RT-PCR) test in blood and/or urine]: symptomatic men and women in ZIKV infection acute phase, and their symptomatic or asymptomatic household/sexual infected contacts. Specimens of blood, urine, semen, vaginal secretion/menstrual blood, rectal swab, oral fluids, tears, sweat, urine and breast milk (if applicable) will be collected at pre-established intervals and tested for ZIKV RNA presence by RT-PCR, other co-infection (dengue, Chikungunya, HIV, hepatitis B and C, syphilis), antibody response (including immunoglobulins M and G), plaque reduction neutralization test (if simultaneously positive for ZIKV and dengue), and ZIKV culture and RNA sequencing. Data on socio-demographic characteristics and comorbidities will be collected in parallel. Participants will be followed up for 12 months.

Discussion

This prolonged longitudinal follow-up of ZIKV infected persons with regular biologic testing and data collection will offer a unique opportunity to investigate the presence and persistence of ZIKV in various biologic compartments, their clinical and immunological correlates as well as the possibility of ZIKV reactivation/reinfection over time. This valuable information will substantially contribute to the body of knowledge on ZIKV infection and serve as a base for the development of more effective recommendation on the prevention of ZIKV transmission.

Trial registration

NCT03106714. Registration Date: April, 7, 2017
Zusatzmaterial
Additional file 1: Questionnaire_screening. (PDF 370 kb)
12879_2018_2965_MOESM1_ESM.pdf
Additional file 2: Questionnaire_enrolment_female. (PDF 460 kb)
12879_2018_2965_MOESM2_ESM.pdf
Additional file 3: Questionnaire_enrolment_male. (PDF 444 kb)
12879_2018_2965_MOESM3_ESM.pdf
Additional file 4: Questionnaire_follow.up_female. (PDF 311 kb)
12879_2018_2965_MOESM4_ESM.pdf
Additional file 5: Questionnaire_follow.up_male. (PDF 299 kb)
12879_2018_2965_MOESM5_ESM.pdf
Additional file 6: Consultation_form_1st_visit. (PDF 608 kb)
12879_2018_2965_MOESM6_ESM.pdf
Additional file 7: Consultation_form_2st_visit. (PDF 350 kb)
12879_2018_2965_MOESM7_ESM.pdf
Literatur
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