I choose Rhinovirus. This virus is most significant in the infection of the common cold. It is caused by a virus microbe. It is an air-borne infection hence spread by aerosols (through coughing and sneezing). Infection are common in the cold seassn due to changes in behavior patterns of humans who tend to huddle around other people and indoorss to keep warm. This makes great opportunties to the spread of the virus. Therefore, to prevent its spread, avoid overcrowding especially if some persons in the crowd are infected