A: After a variable incubation period, which is usually between two and five days, there is a sudden onset of repeated shivering attacks, and the patient's body temperature rises to over 104&#131;F (40&#131;C).
(a variable incubation period; is; T:usually; between two and five days) (the patient's body temperature; rises; to over 104&#131)
a variable incubation period the patient's body temperature
is rises
T:usually between two and five days
to over 104&#131