Skull injuries could be among the factors making people vulnerable to the rare and fatal amoebic meningoencephalitis in Kerala.

According to sources, one of the infected persons who died recently at the Government Medical College Hospital, Kozhikode, had cerebrospinal fluid (CSF) rhinorrhoea or leakage of the cerebrospinal fluid through the nose, which is caused by skull injuries. This could have happened due to road accidents or any other reasons, say doctors.