Select a human disease caused by a virus and address the following:

1. What are some of the signs and symptoms of your chosen viral disease?
2. What is the causative agent for this disease?
3. What type of cells does the virus attach to?
4. What is the mode of transmission for the virus? Include a description of the reservoir for the virus, if any. Additionally, you should include the specific portal of entry/exit for the virus.
5. Is there a treatment or vaccine for the virus?

Feel free to include any interesting information you may have found in your research.