How likely is it Boris could catch Covid again?

Prime Minister Boris Johnson has fallen into self-isolation after coming into contact with a MP who has since tested positive for coronavirus.

Mr Johnson signed a contract with Covid-19 earlier this year and has spent significant amounts of time in the hospital and in recovery.

This morning, Mr Johnson tweeted that he was “in good health and with no symptoms” after being instructed to self-isolate.

In a video posted on Twitter, he said, “Hi guys, the good news is that NHS Test and Trace is getting more efficient, but the bad news is they called me and I have to isolate myself because someone I was in Contact with a few days ago developed Covid.

“It doesn’t matter that we are all social distancing, it doesn’t matter that as a butcher dog I am fit, feel great – so many people do this in my circumstances.

“And actually it doesn’t matter that I had the disease and that I am full of antibodies. We have to stop the spread of the disease. One way to do this now is to self-isolate for 14 days after we leave Test and Trace to be contacted. “

Danny Altmann, a professor of immunology at Imperial College London, said the rules by which Boris Johnson must self-isolate “probably make sense”.

He told BBC Radio 4’s Today program that there have been more than 25 confirmed cases of Covid-19 reinfection worldwide but added, “I think most of us think the reinfection rate is much higher, but not enormous. “

Prof. Altmann said, “I think my bottom line is not to be alarming because whatever the risk is, it is low. From some of our data and that of other people, it appears that it is the people who have had the worst and most negligible antibody response the first time and are most at risk of re-infection.

“So that’s maybe 10% of everyone out there who got infected in the first wave.”

He added, “If we have learned anything since early 2020, this is an incredibly contagious and scary virus and you can’t take it too seriously.

“All of the things we know about – masks, well-ventilated work areas – are really important. And if you received a takeaway message from a discussion of new infections, it is not a bubble because you had or think you have had it. “

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