Natasha Willard appeared to be suffering from flu just before Christmas . But four months later the teenager can barely move her limbs or talk . She has been diagnosed with encephalitis , or swelling , of the brain . The condition is caused by a virus called enterovirus D68 which causes inflammation in the brain.
Natasha Willard appeared to be suffering from flu just before Christmas . But four months later the teenager can barely move her limbs or talk . She has been diagnosed with encephalitis , or swelling , of the brain . Doctors are unsure whether Miss Willard , 17 , will be able to fully recover .