Nothing is real anymore. So they “estimate” that 1 million had it, but have not proof; only speculation; probabilities.
Real is always a misnomer. To be real a situtation must be extremely and carefully defined.
Probabilities on the other hand, when done correctly, particularly correcting for uncertainties, provide a bound of knowledge for a situation.
Unfortunately, way to many people don't understand the true value of probabilities. Climate modelers are a perfect example...