D.H., male, age 9 years 11 months, developed chickenpox in March 1960. He had an extensive rash and showed more general illness at the outset than did his younger brother who infected him. After a week, he complained of headache and pain in his limbs and began to vomit. When he tried to get up, he cried with pain in his legs. These symptoms persisted. When seen for the first time 14 days after ...
