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ZIKV Vaccination

Decent Essays

The recent emergence and the spread of Zika virus (ZIKV) in several countries around the globe have been considered as an emerging global public health problem. ZIKV is an arbovirus belongs to the flavivirus genus. ZIKV is an enveloped, spherical virus containing a single-stranded positive RNA with a genome consisting of approximately 10,794 nucleotides. The RNA of ZIKV is translated into a polyprotein which is co & post-translationally cleaved into 11-mature proteins. ZIKV was first identified in the Zika forest of Uganda in 1947 (1). ZIKV is primarily transmitted by the infected Aedes mosquito’s bites (2), and resides in the salivary glands of infected mosquitoes. ZIKV is, also, found to be sexually transmitted as the ZIKV RNA, have been observed in sperm and urine after 62days of infection (3,4). In …show more content…

ZIKV vaccination of women during pregnancy have several issues to be addressed. First, in order to protect a developing fetus, the ZIKV vaccination protective immunity in pregnant women must be achieved at the time of first and early second trimester. However, many pregnant women do not know about their pregnancy until their first trimester. The replicating live virus vaccine may provide protective immunity at single dose are not generally considered as a good candidate vaccine for pregnant women. Inactivated virus, recombinant, and other nonreplicating vaccines are good for pregnant women, need to be administered at multiple doses to achieve the protective immunity and hence extending the time window for pregnant women. Second, for the long-term goal, the ZIKV vaccination should be provided in the pediatric population to generate protective immunity in women at the childbearing age before their pregnancy and to prevent sexual transmission of ZIKV. It can be achieved if the ZIKV vaccine is safe, durable and provide robust

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