1 For the aim of this steerage, fever is outlined as subjective fever (feeling feverish) or a measured temperature of 100.4°F (38°C) or greater. Observe that fever could also be intermittent or is probably not current in some individuals, resembling those that are aged, immunocompromised, or taking sure fever-reducing drugs (e.g., nonsteroidal anti-inflammatory medication [NSAIDS]).