So far, 13 cases of direct person-to-person transmission of zika virus have been documented, and the only predisposing factor appears to be a high viral load of patients who are critically ill.
Hi This disease is caused by a virus known as flavivirus and carried from one individual to another through a mosquito bite called Aedes causes this disease.
Actually there are evidences to transmission person to person without vector (no necessary presence of aedes or another vectors). The question is relation to this condition
Hi, you may want to check this article:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5367426/
Additionallly there a lot more of research to do regarding predisposing factors, but for sure will involve at some level the HLA phenotype of the patient, just like with Dengue virus Infection, here some good paper on that matter: http://www.pnas.org/content/110/22/E2046.full