What is a virus and why is a cold incurable?
system
What is a virus and why is a cold incurable?
user
A virus is a piece of DNA or RNA (nucleic acid) surrounded by a protein coat. It is an infective agent and must enter a host cell to replicate.  It can not replicate by itself and infects a host cell to do this by using components in it to make copies of itself.

A cold is caused by viruses and there are many different types of these, including:
1. Rhinoviruses
2. Adenoviruses
3. Coronaviruses
4. Coxsackieviruses

Currently, there is no cure for a cold because these viruses divide and mutate (change) so rapidly that it is difficult to find a cure for the large number of cold viruses that exist.
assistant
<|system|>
</s>
<|user|>
What is a virus and why is a cold incurable?</s>
<|assistant|>
A virus is a piece of DNA or RNA (nucleic acid) surrounded by a protein coat. It is an infective agent and must enter a host cell to replicate.  It can not replicate by itself and infects a host cell to do this by using components in it to make copies of itself.

A cold is caused by viruses and there are many different types of these, including:
1. Rhinoviruses
2. Adenoviruses
3. Coronaviruses
4. Coxsackieviruses

Currently, there is no cure for a cold because these viruses divide and mutate (change) so rapidly that it is difficult to find a cure for the large number of cold viruses that exist.</s>
