Causes
Rigors are commonly caused by:
- Influenza
- Tonsillitis
- Infectious Pneumonia
- Biliary sepsis (part of Charcot's triad 2)
- Pyelonephritis
- Opioid withdrawal
- Visceral abscess (including lung, liver and paracolic)
- Malaria
- A side effect of treatment with amphotericin B
- General Illnesses
Read more about this topic: Chills