Healthy boys may be more likely to be admitted to hospital with a rare side-effect of the Pfizer/BioNTech Covid vaccine that causes inflammation of th

Boys more at risk from Pfizer jab side-effect than Covid, suggests study

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2021-09-11 10:00:06

Healthy boys may be more likely to be admitted to hospital with a rare side-effect of the Pfizer/BioNTech Covid vaccine that causes inflammation of the heart than with Covid itself, US researchers claim.

Their analysis of medical data suggests that boys aged 12 to 15, with no underlying medical conditions, are four to six times more likely to be diagnosed with vaccine-related myocarditis than ending up in hospital with Covid over a four-month period.

Most children who experienced the rare side-effect had symptoms within days of the second shot of Pfizer/BioNTech vaccine, though a similar side-effect is seen with the Moderna jab. About 86% of the boys affected required some hospital care, the authors said.

Saul Faust, professor of paediatric immunology and infectious diseases at the University of Southampton, who was not involved in the work, said the findings appeared to justify the cautious approach taken on teenage vaccines by the UK’s Joint Committee on Vaccines and Immunisation.

The JCVI did not recommend vaccinating healthy 12 to 15-year-olds, but referred the matter to the UK’s chief medical officers who are expected to make a final decision next week. Children aged 12 to 15 who are particularly vulnerable to Covid, or who live with an at-risk person, are eligible for the shots.