Some common symptoms of encephalitis secondary to a cold in children primarily include fever, usually moderate to high, though some may exhibit low fever. Next, symptoms such as headache, dizziness, primarily around the forehead, crown, or occipital region, may occur. This is followed by vomiting, which is generally more evident after eating or drinking, with some exhibiting persistent vomiting. Additionally, some may experience lethargy, weakness, or even seizures.