Fresh indications Covid-19 immunity exists are encouraging, UK testing chief says

South Korea has said faulty tests were behind almost 300 people testing positive a second time for coronavirus.

The UK’s testing guru has said it is “encouraging” that new evidence emerging out of South Korea suggests those who have fought off coronavirus might develop an immunity afterwards.

Fears had been sparked that hopes of creating a natural “herd immunity” against the deadly virus might have been lost after almost 300 cases in South Korea emerged of people who had seemingly contracted Covid-19 a second time.