Sunday, November 19, 2017
ADVT 
Health

Zika May Not Spread By Kissing: Study

Darpan News Desk IANS, 02 Aug, 2017
  • Zika May Not Spread By Kissing: Study
Casual contact like kissing or sharing a fork or spoon does not increase the risk of transmission of Zika virus as the infection may not spread through saliva, US researchers have found.
 
Scientists believe that mosquito bites are the source of most Zika virus infections in people. After infection, the Zika virus is present in blood and saliva for up to about two weeks, but it remains in bodily fluids like breast milk for weeks and semen for months. 
 
"The viral loads in the saliva in general are low, but there are also anti-microbial components in saliva making that low level of virus even less infectious than it might be in another medium," said Christina Newman, a scientist at the University of Wisconsin-Madison. 
 
"Saliva is also viscous stuff. That hinders the ability of the virus to move and get to cells that they could infect," added Dawn Dudley, a scientist at the university.
 
For the study, published in the journal Nature Communications, the team infected rhesus macaque monkeys with the strain of Zika virus that has been circulating in North and South America in recent years, and saliva was collected from the infected monkeys.
 
The researchers swabbed the tonsils of five uninfected monkeys with the saliva, and 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), the researchers said.
 
The study's infected monkeys had very little active virus in their saliva, compared to the amounts typically passed into people or monkeys by mosquito bites. 
 
"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," said Tom Friedrich, Professor at the University of Wisconsin-Madison.
 
Meanwhile, on Tuesday, the Florida Department of Health has announced the first sexually transmitted Zika case in 2017, health officials said in a statement. 
 
There is no evidence of ongoing transmission of Zika by mosquitoes in any area of Florida, the report said, while adding that it is important to remember Zika can also be transmitted sexually and precautions should be taken if couples are travelling to places where Zika is active. 

MORE Health ARTICLES

Want To Keep Diabetes At Bay? Drink Alcohol

Want To Keep Diabetes At Bay? Drink Alcohol
Who knew alcohol consumption could also have a positive impact on our health!  It's not every day that medical studies say alcohol could be good for you but according to a recent study, drinking alcohol can significantly protect against diabetes.

Want To Keep Diabetes At Bay? Drink Alcohol

Eating Walnuts May Boost Gut Health, Cut Cancer Risk

Eating Walnuts May Boost Gut Health, Cut Cancer Risk

Walnuts act as a probiotic to help nourish and grow the bacteria that keeps the digestive system healthy, the researchers said.

Eating Walnuts May Boost Gut Health, Cut Cancer Risk

Cows Can Cure HIV. Surprised? Well This Is What Researchers In The US Have Found

Cows Can Cure HIV. Surprised? Well This Is What Researchers In The US Have Found

Do Not Underestimate Your Cows? They Can Be Useful In More Ways Than You May Have Ever Heard. Read This Report To Find Out How.

Cows Can Cure HIV. Surprised? Well This Is What Researchers In The US Have Found

Tomatoes Have The Power To Ward Off Skin Cancer Risk, Say Scientists!

Tomatoes Have The Power To Ward Off Skin Cancer Risk, Say Scientists!
Daily tomato consumption has been found to cut the development of skin cancer tumours by half in mice, scientists say.

Tomatoes Have The Power To Ward Off Skin Cancer Risk, Say Scientists!