Germs, Viruses Hop Continents By Travelling In Earth’s Atmosphere

It turns out you shouldn’t just be worried about picking up germs from surfaces, but from fresh outdoor air as well. University of British Columbia researcher, and study co-senior author Curtis Suttle explains, “Every day, more than 800 million viruses are deposited per square meter above the planetary boundary layer — that’s 25 viruses for each person in Canada.” Scientists say germs are swept up in soil dust and sea spray into an area called the free troposphere, which is located above weather systems, but below the stratosphere were jets fly. At this altitude, viruses and bacteria can be carried thousands of miles (and even from continent to continent) before they fall back to Earth’s surface. (UPI)