A live music event trial carried out in Spain found no reports of virus transmission, suggesting that indoor events can take place without increasing the risk of new coronavirus cases.

The first randomised controlled trial to assess the impact of Covid-19 safety measures at the live concert, in December last year, included a range of safety precautions, from attendees taking same-day lateral flow tests before entry, the mandatory wearing of N95 masks, enhanced ventilation and crowd control, reported The Telegraph.

There was no requirement for social distancing and attendees were allowed to sing and dance during the event in Barcelona.

At the time the trial was carried out, case rates were low to intermediate in the region (221 cases per 100,000 people).

Live event trials have also been taking place in the UK, including a music festival in Sefton Park, Liverpool, as part of the government’s events research programme, with the hope that these events can restart from this summer.

Meanwhile cabinet office minister Michael Gove has said the decision about whether to introduce Covid certificates to allow events and venues to reopen remained “finely balanced”, with downsides of the scheme including “cost and the hassle factor”.

He said if the scheme did go ahead it would only be temporary, with MPs to vote on the proposals.