One rare virus spreads between humans through a simple breath
While most hantaviruses require contact with rodent waste, this specific South American strain can jump from person to person through the invisible mist of a cough.
Most hantaviruses are trapped in a biological dead end, jumping from forest rodents to humans but never traveling further. However, the Andes virus found in Argentina and Chile has broken this rule by evolving to survive in human saliva. While other strains are neutralized by the natural antiviral chemicals in our mouths, the Andes variety bypasses these defenses, allowing it to hitch a ride on a simple breath. During a 2018 outbreak in the mountain town of Epuyén, a single infected individual managed to pass the virus to several others during a brief social gathering, proving how easily the pathogen can navigate a crowded room.
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