Symptoms occur once
the virus reaches the brain.
After
the virus reaches the brain and spinal cord and begins to reproduce, virus particles move to other body tissues.
Not exact matches
When it
reaches the
brain, Zika
virus infects neuronal stem cells, which will generate fewer neurons, and by inducing chronic stress in the endoplasmic reticulum, it promotes apoptosis, i.e. the early death of these neuronal cells.
«Novel viral vectors deliver useful cargo to neurons throughout the
brain and body: The
viruses reach their targets via the bloodstream and could be used to treat neural disorders.»
The team found that the
virus infected nerves in the gut, then entered the
brain stem and finally
reached the
brain.
A group of scientists has redesigned and tested a harmless
virus that can efficiently deliver a «gene silencing» message throughout the
brain in mice, much further than naturally occurring
viruses can
reach.
The nearer the bite is to the
brain and spinal cord, the quicker the
virus reaches the nervous tissue and causes symptoms.