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Zika virus infection pathway study: Modeled on mice, the virus can infect specific areas of the eye, leading to vineitis and conjunctivitis.
may be the cause of eye disease or even blindness in 10 to 15 percent of people infected with Zika.
, after the Zika virus was removed, researchers found viral RNA in the rodent's tears.
scientists wonder if the virus continues to replicate in tear glands or corneas outside the protection of the immune system.
, researchers at the University of Washington School of Medicine published their findings in the journal Cell-Newsletter.
"Human studies are needed to better understand the infection of the Zika virus in the eyes, but such animal models are useful in showing what might happen and detecting new treatments."
researcher, ophthalmologist and molecular biologist Rajendra Apte of the University of Washington School of Medicine.
to understand the effects of the Zika virus on the eyes, researchers simulated how humans were infected by mosquito bites and injected laboratory mice with the Zika virus.
, they found live Zika virus in the eyes of the mice.
was followed by conjunctivitis and vineitis in the eyes of mice.
researchers say many adult patients are also infected with conjunctivitis, but cases of staphylococcitis are rare.
iris, retina and optic nerves are concentrated in the grape membrane.
still unclear how the virus got into the eye.
virus may have entered the eye from the brain along the optic nerve, or it may have crossed the retina barrier.
" study lead author S. Zika can also be transmitted through contact with the tears of infected people, Diamond said.
researchers also explored whether the Zika virus in the eyes could be infected.
found that mice in tears 28 days after infection, although no Zika virus, but the genetic material of the Zika virus.
they also extracted viral RNA from the eyes of mice seven days after contracting the Zika virus and injected it into another mouse, only to be not infected with the latter.
show that the eye does not produce an infectious virus in the early stages of infection.
but the researchers noted that while there was no live virus in the mice's tears, that did not mean that Zika would not spread through human tears.
in tears can be highly contagious over a period of time, and people may become infected if they come into contact with tears at this time.
the study also found no eye symptoms in newborn mice infected with the Zika virus, but that doesn't mean the Zika virus doesn't exist.
article: Canada's first case of sexual transmission of the Zika virus The Zika virus is now present in many countries in the Americas: or can be transmitted sexually.