<unk><unk>  may be classified according to the course of the disease as acute or chronic. Acute<unk><unk>  has a very rapid onset and resolves within 6 months of onset. Chronic<unk><unk>  persists for more than six months and is associated with a poorer prognosis.
Q fever classification
Toxic shock syndrome classification
Tetanus classification
Anaphylaxis classification
Proteus infection classification
Lactic acidosis classification
Legionellosis classification
Group A streptococcal infection classification