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Is a 101.5°F fever serious?

GeneralClass 12AllAnswered 27 Mar 2026
Answer

101.5°F (38.6°C) is a moderate fever. While not immediately dangerous for most adults, it warrants attention. For adults, monitor symptoms and seek medical care if the fever persists beyond 3 days, reaches 103°F (39.4°C), or is accompanied by severe symptoms. For infants and young children, lower thresholds apply consult a pediatrician for fevers above 100.4°F (38°C) in infants under 3 months.

General · Class 12