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Unformatted text preview: Purulent nasal discharge (in the later stages) Lack of energy Causes The common cold is usually cause by one of the following viral infections:- Rhinovirus Adenovirus Corona virus Para-influenza Echovirus Respiratory Syncytial virus Coxsackie A Influenza A & B Infections are mainly spread by droplets that are produced when an infected person coughs or sneezes, but it may also spread by direct contact with skin, if the skin has been in contact with mucosal secretions. Immunity following a cold is very short lived and because the viruses do not typically enter the bloodstream, there is no common antigen which the body can build up an immune response against....
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- Fall '10