Yes.
The first word that influenza experts use to describe the illness is “unpredictable.”
In a normal flu season, at least three strains circulate. Flus mutate every year as they pass through millions of human hosts. Over decades, they sometimes even pick up genes from pig or bird flus.
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What surface is the most friendly to the flu virus? Where’s the best place to stand when you’re talking to a sick person?
How does sleep affect health, relationships and well-being?
The “Reading the Mind in the Eyes Test” measures ability to understand others’ emotional states.
