Because of financial constraints serological tests could not be performed and thus the diagnosis is ONLY PRESUMPTIVE.
The finding included a severe disruption of the brain due to a large hematoma. Because of endemic conditions and the febrile episode, it was suspected that the baby had a encephaloclastic hemorrhage from Dengue infection. There are no such reports I could find in Medline, but there are cases of fetal infection and the hemorrhagic complications are well-known.