Common cold that is known as COLD, is viral infectious disease of the super respiratory tract that basically affect the nose. The throat, sinuses and larynx may be affected also. Common cold is also known as acute viral nasopharyngitis, nasopharyngitis, viral rhinitis, rhinopharyngitis, viral rhinitis, acute coryza, head cold and upper respiratory tract infection (URTI).
√ Sore throat.
√ running nose.
√ Blocked nose, et cetra.
However, some people do not suffer any symptoms when infected with the cold virus. Perhaps because their immune system reacts differently to the virus sometimes, bacteria can infect ears or sinuses during this viral infection that is called SECONDARY BACTERIA INFECTION.