A 6-week-old previously healthy infant presents with a rectal temperature of 38.4 °C and no focal symptoms. He appears well. According to Canadian paediatric fever guidance, what minimum investigations are recommended?ANo investigations are required; presume viral illnessBFull sepsis work-up including blood cultures, lumbar puncture, and admission for intravenous antibiotics in all infants under 3 monthsCAt minimum, urinalysis and urine culture, with further testing guided by risk stratificationDChest radiograph and throat swab onlyEStart oral antibiotics without investigationsCheck my answer