For many readers, the title of this article might sound bizarre: why would the existence of viruses need proving? Yet there are many people who, bizarrely, do not believe viruses exist, and their voices are growing louder. This article is written for them.
When COVID first spread around the world, life changed almost overnight. Masking, social distancing, lockdowns—these all felt extreme at the time. But something unusual happened during those months: colds and the seasonal flu virtually disappeared. People stopped getting the usual sniffles, fevers and sore throats that come every winter. Then, as soon as restrictions eased and people began mixing normally again, these illnesses returned. It was almost as if the viruses had paused while the world stayed apart. This simple pattern raises an important question: if viruses don’t exist, how do you explain that?
This isn’t just anecdotal. Across many countries, hospitals reported record-low levels of flu, and everyday colds became far less common. When human interaction resumed, so did the illnesses, following a pattern that repeated globally. The logic is simple: less contact between people meant less illness; more contact meant more illness. That is exactly what you would expect if these illnesses are caused by something that spreads from person to person.
If viruses didn’t exist, you’d have to believe colds and flu are caused by internal processes, environmental factors, or some kind of general “toxicity”. But those factors didn’t suddenly disappear during lockdowns. And yet, illness rates did. When interactions returned to normal, illness rates rose again. The simplest explanation, the one that fits reality without adding extra assumptions, is that these illnesses involve something that passes from person to person—and that “something” is what we call viruses.
Some people argue that the pandemic was a hoax designed to control populations, to keep people fearful and to train them to accept other forthcoming restrictions in a “post-COVID world”. But if the goal was permanent control, why were restrictions lifted across the globe? Lockdowns ended, travel resumed, schools and workplaces reopened and social life returned to normal. To maintain the “total control” explanation, one would have to believe in a perfectly coordinated global plan to impose restrictions and then remove them, all while claiming it was for permanent population control. That seems far more complicated than a simple, observable reality: there was a real contagious illness, and measures were introduced (and later lifted) in response to it.
You don’t need a PhD in Virology to notice the pattern. For months, when people stopped mixing, colds and flu almost vanished. When people started mixing again, they returned. Restrictions were temporary, not permanent, illnesses followed human interaction and the world returned to normal. The explanation that fits these observations with the fewest assumptions is the one that makes the most sense: viruses are real, and respiratory illnesses like colds and flu are caused by them. Observing these patterns in your own life and community can be as persuasive as any scientific article.