Zika Virus (I). Isolations and serological specificity

Per previous post, no 'patent' data is attributed to Zika, only information pertaining to it's discovery and initial isolation (link may be a bit temperamental). 'Outbreaks' had been rare, and infections insignificant, until recent decades where it's rapid spread has been attributed to living conditions in effected areas promoting increases in the primary vector, mosquitoes, although Zika has also been recorded suspected to have been transmitted through sexual contact.