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Previous exposure to dengue may make Zika worse, scientists find

By Kate Kelland LONDON (Reuters) – Scientists studying the Zika outbreak in Brazil say previous exposure to another mosquito-borne virus, dengue, may exacerbate the potency of Zika infection. The scientists said their results, published in the journal Nature Immunology, suggested that some dengue antibodies can recognize and bind to Zika due to the similarities between the two viruses, but that these antibodies may also amplify Zika infection in a phenomenon called antibody-dependent enhancement. This effect is already known with dengue, they said, and is thought to explain why, when a person gets dengue fever a second time, the infection is often more serious than the first.

5 Ways Nature Can Make You Kinder, Happier, and More Creative

By Jill SuttieWe are spending more time indoors and online. But recent studies suggest that nature can help our brains and bodies to stay healthy.I've been an avid hiker my whole life. From the time I first strapped on a backpack and headed into the Sierra Nevada Mountains, I was hooked on the experience, loving the way being in nature cleared…

Why You Should Go Out On A Limb And Spend More Time In Nature

What do you do to lift your spirits when you’re down in the dumps? Watch TV? Listen to music? Cry and eat a pint of ice-cream? Perhaps a better solution is to simply sit outside.A connection with nature may actually help to make us happier and healthier individuals. Henry David Thoreau once wrote, “an early morning walk is a blessing for…