d*****o
发帖数: 103 | 1 The novel coronavirus can be transmitted through the eyes because of a
protein known as the “gateway” into cells inside the body, according to a
new study.
A team of researchers from the Johns Hopkins University School of Medicine
have found that the eyes create the protein called ACE-2, making them a
target for the virus, according to the Mirror.
The protein also can be found in the respiratory tract and the lungs.
“Ocular surface cells including conjunctiva are susceptible to infection by
SARS-CoV-2, and could therefore serve as a portal of entry as well as a
reservoir for person-to-person transmission of this virus,” lead researcher
Lingli Zhou wrote in the study published on bioRxiv.
The researchers studied 10 eyes from people who did not die of COVID-19 and
discovered that ACE2 was present in all of them, including the cornea,
inside the eyelids and in the white of the eye, according to the news outlet.
“Infection of ocular surface cells could lead to the eye as being an
important carrier, with ocular virus shedding constituting a significant
mechanism for infection of other individuals,” the scientists said.
“Our study therefore highlights the importance of safety practices in the
general community to prevent infection and spread (hygiene, face masks) and
need for extra caution among ophthalmologists.”
The study suggests that if droplets from an infected person’s sneeze or
cough were to reach the eye’s tissue, the pathogen could begin infiltrating
cells there.
This may be why some patients have developed conjunctivitis, an inflammation
of the eye that causes it to become red and infected, the Express reported.
Tears also may help spread the infection, scientists said.
Doctors first claimed the virus could be spread through the eyes in January,
when the epicenter was still in Wuhan, China.
Dr. Wang Guangfa said at the time that he believed he had been infected
because he had not been wearing protective goggles, the Express reported.
Several days before experiencing pneumonia, the Peking University
respiratory specialist observed that his eyes were red. | h*****o
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