Iceberg Capital of the World Greenland’s Coastline like Floating Sculptures ICEBERG CAPITAL OF THE WORLD Many of the picturesque icebergs along Greenland’s west coast calve from two North Greenland glaciers, and as luck would have it, they share the same name! The largest collection of icebergs in Greenland exists at the Ilulissat Icefjord, thanks to one of the fastest glaciers in the world called Sermeq Kujalleq. True to its “iceberg capital of the world” nickname, Ilulissat is home to thousands of icebergs that can be seen year round by hiking, sailing, or flightseeing.
Where viruses and bacteria cause cancer Strictly speaking, cancer is not contagious. But a fair number of cancers are clearly caused by viral or bacterial infections: lymphomas can be triggered by the Epstein-Barr virus, which also causes mononucleosis. Liver cancers can be caused by Hepatitis B and C. Cervical cancers can be caused by human papillomavirus, the major reason behind the development of a vaccine against it. For some of these cancers, nearly 100% of the cases have an infectious link—when researchers check to see if a virus or bacterium is working in the tumor or has left signs of its presence in a patient’s blood, the answer is nearly always yes. A new paper in The Lancet takes a look at the very best data on the prevalence of infection-caused cancers and comes up with some striking numbers. Overall, they estimate that 16% of cancer cases worldwide in 2008 had an infectious cause—2 million out of 12.7 million. Until recently cancers were seen as lifestyle and genetic diseases, brought on by exposure to carcinogens or a mutated gene. Recent studies are linking microbes to many different kinds of cancers. Participants will discuss not only how infection with specific pathogens causes cancers but also how disruptions in the human microbiome can also cause disease. Christian Jobin, University of Florida, Gainesville
