Several attendees of Bitcoin 2021 are now reporting on social media that they have contracted COVID-19 after attending the event last weekend in Miami, causing some to now dub the conference a "super spreading event.”

As many as 12,000 cryptocurrency fans from around the world attended Bitcoin 2021 over the course of three days, which was being held at the Mana Wynwood convention center.

The conference is now drawing criticism as it had no precautions in place to prevent the spread of COVID-19, including no vaccination requirement for attendees or face mask policy, CNBC reported.

One Twitter user said he was there, and no one was wearing a face mask at all.

Others suggested that a massive in-person conference without a vaccine requirement was just plain “risky.”

Days following Bitcoin 2021, several attendees of the conference took to Twitter to announce that they had tested positive for the coronavirus.

The event was also one of the first major conferences to take place with a large crowd since the pandemic began.

It was unclear at the time of writing exactly how many people had tested positive for the virus after the Bitcoin 2021 conference or if their cases of COVID-19 were connected to the event. Florida no longer reports daily COVID cases and deaths as its vaccination numbers continue to increase.

Conference organizers told CNBC that they provided all attendees with the latest coronavirus recommendation from the Centers for Disease Control and Prevention and the State of Florida as well as telling those attendees that were high risk or hadn’t been vaccinated to consider waiting until next year to attend the conference.

The bitcoin law passed with the support of Bukele's allies despite minority opposition parties -- which criticised the speed of the vote -- refusing to back it
The bitcoin law passed with the support of Bukele's allies despite minority opposition parties -- which criticised the speed of the vote -- refusing to back it AFP / KAREN BLEIER
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