Zika transmission patterns: a meta-review.

Area of Science:

• Virology
• Epidemiology
• Public Health

Background:

• Zika virus (ZIKV) poses a significant public health threat.
• Understanding ZIKV transmission patterns is crucial for effective control strategies.

Purpose of the Study:

• To synthesize existing knowledge on Zika virus transmission patterns.
• To identify gaps in current understanding of ZIKV transmission routes.

Main Methods:

• A comprehensive meta-review was conducted, searching multiple scientific databases.
• Systematic reviews and reviews with specified methods detailing transmission modes were included.
• Eleven studies were selected from over 5,000 initial search results.

Main Results:

• Strong evidence supports Zika virus transmission via vectors, mother-to-child, and sexual contact.
• Transmission through breastfeeding, intrapartum, animal bites, or laboratory exposure remains inconclusive.
• The risk of transfusion transmission is noted, necessitating public health measures for safe blood transfusion.

Conclusions:

• Public health interventions should focus on limiting vector-borne, mother-to-child, sexual, and transfusion-related ZIKV transmission.
• Long-term prospective cohort studies are essential to gather evidence on less understood transmission routes.
• Further research including seroprevalence studies and transmission modeling is recommended to fully elucidate ZIKV epidemiology.