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A deadly fungus, Aspergillus fumigatus, is rapidly spreading across the US, particularly in warm, humid states. This fungus causes aspergillosis, a lung infection potentially fatal for those with weakened immune systems. The lack of mandatory reporting makes tracking difficult, but hospital stays related to invasive aspergillosis have increased significantly. Climate change is exacerbating the problem, with predictions of a 75% increase in spread by 2100. Overuse of azole antifungal drugs in agriculture contributes to drug resistance. The World Health Organization urges swift action, including developing new drugs and improving diagnostics.

Prepared by Olivia Bennett and reviewed by editorial team.