Consider that sepsis can present atypically in children particularly babies under 3 months.
Be aware of the signs of sepsis and access sepsis screening tools via the sepsis trust: Clinical tools - The UK Sepsis Trust
The NICE traffic light system should be used in conjunction with other investigations to assess for the presence or absence of signs or symptoms that can be used to predict the risk of serious illness (with red being high risk, amber being intermediate risk, and green being low risk), and management directed by the level of risk.
Children aged under 3 months with a temperature of 38°C or higher are at high risk of serious illness and should almost always be referred or discussed with the emergency department (0117 342 8666).
Some useful resources: