evidence: But now, two new studies show that fungi can also be found in a rather unexpected place: cancerous tumors. [...] While the findings show an association between types of fungi and specific cancers, they don’t show whether fungi play a role in how cancer affects people, Bhatt tells Nature News’ Max Kozlov. [...] Still, questions remain. Scientists don’t know what role the fungi play in cancer cells and whether they affect how the disease progresses in humans. The new studies both found that people with certain species of fungi in their tumors had worse outcomes from cancer. Some microbes could possibly help tumors grow or spread, or hide them from our immune systems, per the Times.