WASHINGTON Ja... Vertonghen Hotspur Jersey , May 9 (Xinhua) -- The Ebola virus can persist within the eyeballs for months after a patient recovers from the potentially deadly disease, researchers have found.


A report released this week by the U.S. journal New England Journal of Medicine (NEJM) described a case in which Ebola was present in the eye's aqueous humor -- the clear fluid in the front of the eye, between the lens and the cornea -- 10 weeks after the virus was cleared from the patient's blood.


Despite the presence of Ebola in the eye, the researcher were quick to note that samples from the patient's tears and conjunctiva, the surface of the eye and eyelids, tested negative for the virus, indicating that casual contact with Ebola survivors carries no risk.


The patient, identified by U.S. media as 43-year-old Ian Crozier, was diagnosed with Ebola in September, while working in an Ebola treatment unit in Sierra Leone as a doctor for the World Health Organization.


He was then transported to the United States and treated at Emory University Hospital's Serious Communicable Disease Unit for 40 days, including 12 days of mechanical ventilation and 24 days of renal replacement therapy.


After his blood and urine tested negative for the virus, Crozier was discharged home. A semen sample obtained on the day of discharge, however, tested positive, so he was advised to abstain from sex or to use condoms for at least three months, according to the NEJM report.


Shortly after discharge, Crozier found he had new symptoms, including low back pain. Two months later, he returned to the same hospital with an inflammation called uveitis and increased pressure in his left eye. The resulting swelling led to reduced vision, and surprisingly, the eye's color changed from blue to green.


So, his doctors stuck a needle in his eye and obtained an aqueous humor sample, which tested positive for the Ebola virus.


"It felt almost personal that the virus could be in my eye without me knowing it," Crozier told the New York Times.


Data on eye complications among survivors in the current outbreak are limited. Although 40 percent of participants in a recent survey of 85 Ebola survivors in Sierra Leone reported having "eye problems," the incidence of uveitis in this group was unknown, the NEJM report said.


Several studies of prior outbreaks, however, showed that Ebola infections often manifest in the eyes and can impact vision and cause blindness long after a systemic infection has cleared.


One study on survivors of the 1995 Ebola outbreak in the Democratic Republic of Congo found that three of 20 survivors later developed uveitis, which was marked by eye pain, light sensitivity, reduced vision and excessive tearing.


Lead author Steven Yeh, an ophthalmologist at the Emory Eye Center, believed that surveillance for the development of eye disease in the post-Ebola period is needed.


"The presence of viable Ebola virus in the eye could mean that other Ebola survivors may also be at risk for the development of uveitis," he said in a statement.


"The thousands of Ebola survivors in West Africa and health care workers in their home countries will need to be monitored for eye disease in the post-Ebola period," Yeh said.


The findings also pointed to a need for infection control precautions when Ebola survivors underwent invasive procedures involving the eyes, they said.


As for Crozier, he has experienced visual recovery following therapy for the uveitis. His eye color also returned to normal, but why his eye changed color is still a mystery.


CANBERRA, Jan. 17 (Xinhua) -- England's Heather Watson won her second WTA title with victory over Madison Brengle in the final of the Hobart International on Saturday.


The top-ranked Briton and world number 49 downed the American qualifier 6-3, 6-4 in 89 minutes and completed the tournament without dropping a set.


Watson, 22, who won in Japan in 2012, is the first British woman with two WTA trophies since Anne Hobbs, who won at Auckland in 1985 and Indianapolis in 1983.


Watson heads to next week's Australian Open in Melbourne where she will meet Bulgaria's Tsvetana Pironkova in the first round.


KIEV, July 16 (Xinhua) -- Residents in Kiev laid flowers and light candles at the Russian embassy's gates to convey their condolences to the victims of Moscow's deadly subway derailment, the embassy said Wednesday.


"People expressed their condolence over the tragedy. They brought candles and flowers to the embassy, and left messages of grief," RIA Novosti news agency reported.


Some 20 citizens expressed their friendly sentiments, mostly young people.


Ukrainians also posted unexpectedly positive comments at social websites, in a sharp contrast with anti-Russian sentiments in recent months caused by insurgency in eastern Ukraine which Kiev believes was fueled by Moscow.


The Russian embassy in Kiev was a target of Ukrainian nationalists last month. On June 14, some 100 Ukrainian protesters gathered outside the Russian embassy in Kiev, blocking the exits with car tires, throwing rocks and smoke grenades into the premise and tearing the Russian flag off the building.


According to the latest statistics, at least 22 people died and hundreds more were injured in a subway train derailment on Tuesday, which has become the worst accident in the Moscow metro history dating back to 1935.


Moscow Mayor Sergei Sobyanin has declared Wednesday as the mourning day for the victims, with flags flying at half-mast and entertainment events canceled.

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