BARCELONA (Reuters) - The great and good of the mobile communications world have flocked to their annual jamboree in Barcelona, all armed with this year's must-have tech: a negative COVID-19 test, an FFP2 face mask and a digital badge for contact-tracing.
Over 30,000 visitors from 143 countries are set to stream into the Catalan city for the three-day Mobile World Congress, or MWC, which starts on Monday - and each will have to pass through a mammoth testing area complete with 80 booths.
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