What are the primary caused of fever?
Primary causes may include:
1. An infection
2. Certain medications
3. Heat illness
4. Cancers
5. Autoimmune diseases
6. Some immunizations like Rabies vaccine.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: What are the primary caused of fever?
### Input: 
### Response: Primary causes may include:
1. An infection
2. Certain medications
3. Heat illness
4. Cancers
5. Autoimmune diseases
6. Some immunizations like Rabies vaccine.