Conversation: The conversation between human and AI assistant.
[|Human|] My husband wakes up soaked from sweating and has chills so bad he is shaking what is wrong? He was given a flu shot and also a z pk for a cold the Dr was treating him for. Now he wakes up soaked with sweat and has the chills so bad he shakes and then he feels hot after a while
[|AI|]  Hello, rigor is usually a sign of serious infection although sometimes viral diseases may cause it as well. Influenza is one of those diseases. Other common causes include urinary tract infections, pneumonia and cholangitis. Since he's been treated for a cold, a respiratory tract infection is the most likely cause. He should return to his doctor for an assessment. Diseases that cause rigor should be promptly diagnosed and treated. I hope I've answered your question. Please let me know if you need further assistance. Kind Chat Doctor.