GREIFSWALD, GERMANY - DECEMBER 02: Scientists work in one of the high security laboratories of the Friedrich-Loeffler Institute on the island of Riems near Greifswald on December 02, 2019 in Greifswald, Germany. The Friedrich Loeffler Institute is investigating whether climate change will precipitate the spread of tropical, mosquito-born diseases to Germany. Germany registered its first modern cases of West Nile virus earlier this year. (Photo by Steffen Kugler/Getty Images)
