Charles catches Covid for second time as reinfection rate soars

The Prince of Wales is not alone in contracting the virus for a second time, with reinfections now representing around 10% of daily cases in England.

10 February 2022

Covid reinfections have become more common since the emergence of the Omicron variant but are generally milder than primary infections, an expert has said as the Prince of Wales contracted coronavirus for a second time.

Clarence House announced on Thursday that Charles, 73, tested positive for Covid-19 is self-isolating.

The heir to the throne previously contracted Covid in March 2020.

He suffered a mild form of the virus and described how he lost his sense of taste and smell.

Paul Hunter, professor of medicine at the University of East Anglia, told the PA news agency: “Reinfections were always going to become a big feature of Covid.

“The other human coronaviruses cause reinfections throughout life and this will most likely be the case with Covid.”

A reinfection is defined as someone who tests positive for Covid-19 more than 90 days after a previous positive result.

Any positive tests within 90 days of a previous one are counted as part of the same “infection episode”.

Covid reinfections currently represent around 10% of daily cases in England, though Prof Hunter said that “this is likely to be a big underestimate as, if reinfections are generally mild, they are less likely to be identified”.

He went on to say: “Sometimes reinfections occur because of the appearance of new escape variants that can bypass existing immunity to a degree and sometimes it may be just because immunity is waning.

“The recent emergence of the Omicron variant has substantially increased the chances of reinfection compared to what we saw with Delta.

“But in general we can expect reinfections to be less severe than primary infection though not always.”

Of the 14.8 million infection episodes in England since the start of the pandemic, some 588,114 (4.0%) are likely reinfections.

According to analysis by the Office for National Statistics, the risk of reinfection was 16 times higher when Omicron was the dominant strain, compared with the period when Delta was dominant.

Unvaccinated people were twice as likely to be reinfected than those who had their second vaccine dose in the previous 14 to 89 days, the study found.

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