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#1 2018-09-29 02:29:26

Registered: 2018-01-06
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WASHINGTON … -vans.html , Aug. 1 (Xinhua) -- Casual contact like kissing or sharing a fork or spoon is unlikely to pass a Zika virus infection, a new study said Tuesday.

Researchers at the University of Wisconsin-Madison (UW-Madison) who conducted experiments with monkeys found that saliva does not appear to be an approach to spread Zika, according to the study published in the British journal Nature Communications.

"If passing the virus by casual contact were easy, I think we would see a lot more of what we would call secondary transmission in a place like the United States," Tom Friedrich, a virology professor at the UW-Madison School of Veterinary Medicine … nmark.html , said in a statement.

"But we're not seeing clinically apparent spread of Zika throughout the continental U.S. without the presence of the mosquitoes that carry the virus, and our study helps to put into context some of the transmission risk."

Scientists believe that mosquito bites are the source of most Zika virus infections in people.

The virus can also be spread by sexual intercourse, but it has been unclear whether the saliva of an infected person posed a danger.

In the new study, researchers infected monkeys with the strain of Zika virus that has been circulating in North and South America in recent years, and collected saliva from the infected ones.

Then, they swabbed the tonsils of five uninfected monkeys with the saliva … ilbud.html , and for comparison, swabbed the tonsils of three monkeys with a concentrated high dose of Zika virus in solution.

None of the saliva-swabbed monkeys developed an infection, nor did a pair of monkeys who had infected saliva swabbed in their nostrils or eyelids.

However, all three monkeys who had high-dose virus applied directly to their tonsils in the absence of saliva got infected, though the infection took slightly longer to develop than in monkeys infected under their skin.

Actually, the study's infected monkeys had very little active virus in their saliva … ilbud.html , compared to the amounts typically passed into people or monkeys by mosquito bites, the researchers said.

Meanwhile, there are also anti-microbial components in saliva making that low level of virus even less infectious than it might be in another medium, they said.

In addition, saliva is "viscous" stuff, which hinders the ability of the Zika virus to move and get to cells that they could infect.

However … nmark.html , the researchers were also quick to point out a mysterious case of Zika transmission - between an elderly man and his caretaker son in Utah last year -- that ruled out better-understood routes such as mosquitoes or sexual activity.

The son became infected apparently after having contact with his deceased father who had a "uniquely high amount" of virus -- more than 100,000 times higher than seen in other samples of infected people -- in the blood.

"The case in Utah was an outlier -- by orders of magnitude -- in terms of the amount of virus that was present in his blood," Friedrich said.

"Transmission via saliva is theoretically possible, but it would require extraordinarily high viral loads that just aren't present in the vast majority of infected people."

Most people do not have symptoms or will have only mild symptoms when infected with Zika, but the virus has been linked to a serious birth defect called microcephaly and other severe brain defects in babies whose mothers were infected during pregnancy.

Host Matt Lauer pauses during a break while filming NBC's "Today" show at Rockefeller Center in New York, US … inbow.html , May 3, 2013.

NBC News on Wednesday said it has sacked popular “Today” show host Matt Lauer after receiving what it called a detailed complaint from a colleague about inappropriate sexual behavior in the workplace.

After serious review, the complaint received on Monday night represented “a clear violation” of the company’s standards, said NBC News chairman Andrew Lack.

“As a result, we’ve decided to terminate his employment,” he said. “While it is the first complaint about his behavior in the over 20 years he’s been at NBC News Nike Dame Air Huarache Run Ultra SE Sko Sort På nettet , we were also presented with reason to believe this may not have been an isolated incident.”

The news was announced by “Today” co-anchors Savannah Guthrie and Hoda Kotb at the start of the talk show, a staple of US morning television for more than six decades that averages more than 4 million viewers.

“This is a sad morning at ‘Today’ and at NBC News,” said Guthrie. “We just learned this moments ago just this morning. As I’m sure you can imagine we are devastated.”

Lack did not say who made the accusation. “We are deeply saddened by this turn of events,” he said. “But we will face it together as a news organization — and do it in as transparent a manner as we can.”

During Wednesday’s show, NBC News reporter Stephanie Gosk said the colleague had accused Lauer of serious misconduct “throughout 2014.”

Fellow NBC News anchor Willie Geist said he was stunned, especially given Lauer’s role.

“Matt Lauer is the most powerful person at NBC News Nike Dame Air Huarache Run Ultra Br Sko Hvid På nettet , arguably,” he said, referring to Lauer as a friend and mentor who he said had always led by example on the show’s set.

Comcast Corp, the largest US cable television company, owns NBCUniversal.

US President Donald Trump on Wednesday called for some of Lauer’s colleagues to also be fired.

“Wow,” Trump said on Twitter about Lauer’s sacking. “But when will the top executives at NBC & Comcast be fired for putting out so much Fake News. Check out Andy Lack’s past!” he added Herre Nike Air Max TN Plus Udsalg Sort/Sølv Sko , without further explanation.

During last year’s presidential campaign, Trump was accused by 13 women who publicly said that he had physically touched them inappropriately in some way.

Trump denied the accusations, accused rival Democrats and the media of a smear campaign, and went on to win the elect. Basketball Jerseys Wholesale   MLB Jerseys Wholesale   Custom Soccer Jerseys China   Authentic NFL Jerseys Cheap   Authentic NHL Jerseys China   Nike NFL Jerseys Free Shipping   Custom MLB Jerseys Wholesale   College Football Jerseys Wholesale   Adidas NHL Jerseys Wholesale   Custom Soccer Jerseys Cheap



2018-09-29 02:29:26



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