In the chain of infection related to the common cold, the components can be matched as follows:
1. Infectious agent or pathogen: Human Rhinovirus
2. Means of transmission: Droplet transmission
3. Reservoir: Human
4. Portal of exit: Mucus discharge from a cough or sneeze
5. Portal of entry: Inhalation of pathogens from a cough or sneeze
6. New host: Newly infected person
In the case of the common cold, the infectious agent or pathogen is the Human Rhinovirus. It is transmitted through droplets when an infected person coughs or sneezes. The human body serves as the reservoir for the virus. The virus exits the body through mucus discharge from a cough or sneeze and enters a new host through the inhalation of pathogens from the air. The new host then becomes a newly infected person, continuing the chain of infection for the common cold.
