How to prevent baby from colds and is swaddling a good way to prevent it ?

Colds is respiratory system ( throat,larynx,lungs) infection caused by different kinds of viruses . Coldness of baby's room is of great importance in colds. Also by contacts with infected person ,the baby can catch colds ( through sneezing, cough,...) It is important to know that by raising the temperature of room or swaddling or more clothes ,we can not save baby from catching colds ,but we have to avoid contacts with ill people who are infected . The baby's room temperature should be between 19-22 C and it's better to cover baby with long clothes .in case the baby's hands are still cold, we can use gloves for hands and socks for feet .we can feel body's temperature by placing hands on baby's chest and baby's cold hands are not enough to decide how much the temperature is . So, colds are not due to cold feet and hands,but it is because of contacts with infected people.