Covid infection rates have risen in East Suffolk in the week after 40,000 people attended Latitude Festival near Southwold.
Data released by the government up to August 1 revealed East Suffolk's seven-day infection rate had reached 240.9 cases per 100,000 people - an increase from 182.4 the week before.
It was the only district in Suffolk to report a rise in infection rates, with Ipswich's the second-highest in the county at 214.0.
Festival-goers-start-arriving-at-Latitude-2021
Mid Suffolk's infection rate was reported as 199.2, Babergh's rate is 196.7 while West Suffolk's was the lowest at 187.7.
England's national average seven-day infection rate was 281.3 in the same timeframe.
After the festival ended on July 25, Bildeston GP Mark Hainsworth said his staff had noticed a rise in Covid infections in young people - something he dubbed the "Latitude effect".
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