Yes, early rabies symptoms often resemble the flu, but there are a few warning signs that make it distinct. The first stage, called the prodromal phase, lasts 2 to 10 days and may include fever, headache, fatigue, nausea, and body pain, much like a viral illness. However, what sets rabies apart are neurological or sensory changes near the bite site — such as tingling, itching, or pain — which occur in most cases and are an early clue. As the infection progresses, anxiety, confusion, and muscle twitching may appear before more severe symptoms like hydrophobia and paralysis develop.