> Rhinovirus, the virus that causes the common cold, was detected the most. The researchers also found traces of the influenza A virus. Swabs of toilet surfaces

> Rhinovirus, the virus that causes the common cold, was detected the most. The researchers also found traces of the influenza A virus. Swabs of toilet surfaces did not reveal any respiratory viruses. Is the null expectation that respiratory viruses, which are expelled through the mouth and nose, should be found on a toilet seat, where you sit?