Toxic phase. Although signs and symptoms may disappear for a day or two following the acute phase, some people with acute yellow fever then enter a toxic phase. During the toxic phase, acute signs and symptoms return and more-severe and life-threatening ones also appear. These can include: 1  Yellowing of your skin and the whites of your eyes (jaundice). 2  Abdominal pain and vomiting, sometimes of blood. 3  Decreased urination. 4  Bleeding from your nose, mouth and eyes.
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A recent survey from Nielsen lists the most popular smartphone apps of the year. The results indicate that Google and Facebook dominate the mobile app space. Facebookâs primary app proved to be the most popular of 2015 in the U.S., with more than 126 million unique users on average. Google, meanwhile, owns five out of the 10 most frequently used apps. YouTube placed in second with around 97 million unique users, and Facebook Messenger placed in third with about 96 million.