Common Cold | Pneumonia |
It is caused by rhinoviruses. | It is caused by bacteria known as Streptococcus pneumoniae and Haemophilus influenzae. |
It infects the upper respiratory tract. | It infects the alveoli in which a fluid is filled. |
Low-grade fever occurs. | High-grade fever occurs. |
It is treated in 5 to 7 days. | It is a severe disorder and takes time to treat. |
Running nose, sneezing, sore throat, and headache are its common symptoms. | In severe cases nails and lips become bluish, severe chills etc are its symptoms. |