The common cold is really just an infectious disease of the upper respiratory tract.
So it attack people lungs,  how do people get infected with the cold?
It spreads through the air with close contact of people who are already infected.
Is there any cure from the cold or ways to be protected from it?
No you cannot cure it but people usually recover in seven to ten days.
How would I know if I got the cold?
You may have coughing, sore throat, sneezing and headache and other symptoms.