IL1B and cerebral malaria: Because significant LD was not observed between IL1B and IL1RA in the present study, we cannot exclude the possibility that polymorphisms in the other IL1 family genes located between IL1B and IL1RA, such as IL1 family member 9 (IL1F9) and IL1 family member 8 isoform 1 (IL1F8), are associated with cerebral malaria.