<unk>  can occur in patients of all ages. Centers for Disease Control and prevention(CDC) defines a person to have a<unk>  when "he or she has a measured temperature of 100.4° F (38° C) or greater, or feels warm to the touch, or gives a history of feeling<unk> ish."  It is a common finding in children as well as adults. In adults, it can occur due to multiple etiologies such as allergic reactions, Immune disorders, infections, etc.  . The infectious agents often trigger<unk>  by mode of a toxin or an immunogenic reaction to the antigens. Infectious agents associated with<unk>  with<unk>  in adults can be viral or bacterial. Some examples of such organisms are the Rubeola virus, Staphylococcus aureus, Borrelia burgdorferi. Among allergic reactions, adverse drugs reactions are the ones most commonly associated with<unk> . The clinical condition of the patient can range from mild flu-like symptoms in Lyme's disease to<unk> e life-threatening situations such as Toxic shock syndrome caused by Staphylococcus aureus.
Rash with fever
Pharyngoconjunctival fever
Exanthem
Anaphylaxis
Fever of unknown origin
Relapsing fever
Scalp rash
Papular purpuric gloves and socks syndrome