So, every night I come across something that makes me really sad or angry but tonight its brought me to be curious.Doing my usual 10 lairs a night I came across an entry for Jane Japp and whilst looking up her history I found out she had St Virtus's Dance or Sydenham chorea.

St. Vitus’ Dance or Sydenham Chorea is a neurological medical condition, which usually develops in the childhood due to infection caused by Group A beta-hemolytic streptococcus.1 This is the same bacterium which is responsible for causing rheumatic fever. The classic feature of St. Vitus’ Dance or Sydenham Chorea is involuntary rapid and irregular movements of arms, legs, and the facial muscles. St. Vitus’ Dance or Sydenham Chorea is found more in girls more than boys and is known to develop between the ages of 5 and 15.

St Vitus' Dance is now usually treated with penicillin over a period of time where as in the late 1890's, Jane was admitted into the asylum system where she remained until her death in 1900.