Can you get Covid twice and how can you tell if you've been reinfected?

manchestereveningnews.co.uk:

Coronavirus infections skyrocketed during the end of 2021 and early 2022 due to the emergence of the Omicron variant. Now, Covid cases in England have fallen in all regions of England - except the South West, where the trend is uncertain, the Office for National Statistics (ONS) has said.

Around one in 20 people in private households are estimated to have had the virus in the week to 22 January, or 2.6 million people, down from 3.0 million in the week to 15 January.

But Covid infections have continued to rise among children aged from two to school year six, as well as school years seven to 11. Read more:Tory MP says Boris Johnson was 'ambushed with a cake' over party claims Though case rates are falling in most parts of the UK, infection levels remain high - and it's left people wondering if you're able to contract Covid more than once.

It's the million dollar question scientists have not yet been able to give a definitive answer to. One study from Public Health England (PHE) in January 2021 showed that most people who had the virus were protected from catching it again for at least five months.