France, Malta and the Netherlands are among the latest countries added to the UK's list of countries from which returning travellers have to quarantine.
It comes amid mounting concern over the rising number of coronavirus cases in France, the UK's second most popular tourist destination after Spain.
Malta and the Netherlands currently have higher weekly rates than France and are more similar to Spain and Belgium, which were previously added to the travel quarantine list.
France's weekly rate from 3-9 August was 15 cases per 100,000, while the Netherlands was 19 and Malta 35.
The curve of cases in France has followed a similar pattern to the UK since the beginning of July, but is now rising above the UK, although the increase is much lower than Spain or Belgium.
Malta's rate is spiking sharply and is nearer Spain's, while Belgium has seen a small drop – although its rate is still higher than France, the Netherlands and the UK.
The number of cases in the Netherlands has continued to rise steadily since 29 July.
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