Symptoms Of Dengue Fever Baby . However, the younger the child, the more severe the symptoms, which usually materialise around four days after the infection. Here is a list of dengue symptoms in babies you should keep. DENGUE FEVER-Preventive Measures,Natural Home Remedies and ... (Fannie Medina) Dengue can also be dangerous to the developing baby later in pregnancy, particularly if it is the mother's second infection. Dengue In Babies - Causes, Symptoms And Remedies. In rare cases, dengue fever may develop into a more life threatening form known as dengue hemorrhagic fever, which results in bleeding, decreased blood platelet count or thrombocytopenia, blood plasma. Dengue fever: Dengue in infants and toddlers usually starts with the symptoms of a viral illness: high fever or temperature; runny nose ; cough ; a mild skin rash. Symptoms of dengue fever are generally mild in younger children and those who have the disease for the first time. ...