Inclusion Criteria:  Eclampsia:  Diagnosed as new onset generalized tonic colonic seizures or coma in pregnant women or women who have recently given birth. Singleton pregnancies. All gestational ages, including post-partum eclampsia Enrolment to the study must occur within 7 days of an eclamptic episode Women must be coherent and able to provide informed consent prior to enrolment  Preeclampsia:  ● Diagnosed as new onset of hypertension (>140 mmHg systolic or > 90 mmHg diastolic) after the 20th week of gestation and the coexistence of one or more of the following new onset conditions:Proteinuria ,Other maternal organ evolvement.  Singleton pregnancy. Have not experience an eclamptic episode  Normotensive controls:  Healthy normotensive pregnant woman recruited from women seeking maternity services during the same or similar period Matched 1:1 for each eclampsia and preeclampsia case Matched by closest gestational age at recruitment to cases and parity  Exclusion Criteria:  Women with multiple pregnancies. Women with seizures attributed to a diagnosis other than eclampsia such as; central nervous system infections, a history of seizures or epilepsy, medications and/or illicit drug use. Women unable to provide informed consent