encephalitis

In rare cases chicken pox can cause a swelling of the brain, called encephalitis; an inflammation of the lungs, called pneumonitis; and stroke, which can result in hospitalisation and - very rarely - death.

In rare cases it can cause a swelling of the brain, called encephalitis, an inflammation of the lungs, called pneumonitis, and stroke, which can result in hospitalisation and, in very rare cases, death.

Scores of studies show that the vaccine doesn’t cause encephalitis, that most potential side effects resolve quickly on their own, and serious adverse reactions are far rarer than measles complications.

Following a severe battle with autoimmune encephalitis in 2022, which left Burton in a medically induced coma for 25 days, she returned to rugby and was first capped earlier this year.

In 2022 she was diagnosed with autoimmune encephalitis, which occurs when the body's immune system mistakenly attacks the brain, and spent more than three weeks in a coma.