1. The common cold virus, a rhinovirus, is thought to set off half of all asthma attacks.

2. A defense against rhinoviruses might nonetheless succeed by exploiting hidden similarities among the rhinovirus strains.

3. They found a similar drug being tested against a rhinovirus — another cause of the common cold.

4. They were then quarantined and administered nasal drops containing the common - cold - causing rhinovirus.

5. The team that did this particular study only looked at a rhinovirus.