In the 2018–2019 Epuyén outbreak, 34 confirmed cases were linked to one index case, with transmission apparently amplified by symptomatic individuals attending >crowded social events, followed by subsequent close-contact transmissions. Epidemiological analysis estimated >an initial median reproductive number of approximately 2.1 before control measures were implemented, >decreasing after isolation, quarantine and active contact tracing.

So...

To prevent a pandemic we need herd immunity...

And for 2.0, that means 50% vaccinated. Which would be doable if a vaccine actually existed, but it doesn't.

Which is why this is something that should be taken seriously