Tuesday, November 15, 2016

Rhinovirus

A cold is a viral infection of the upper respiratory tract (mucus membrane) or the nose, throat and airways to the lungs caused by the Rhinovirus. Flu (fever, chills, rigors, headache, fatigue) usually occur suddenly after an incubation of about one to four days. Flu symptoms last about one week.

Rhinoviruses tend to infect people in late summer and early autumn. The typical ‘flu-like’ symptoms of fever, muscle aches, fatigue and headaches, are much milder in a rhinovirus infection than in an influenza infection.

Rhinovirus 16
This is because these symptoms are caused in large part by interferon, and rhinovirus-infected cells produce relatively little interferon. In addition, because rhinovirus reproduces best below the core body temperature, rhinovirus infections usually are confined to the upper respiratory tract.

Rhinovirus reproduces quickly, and coughing and sneezing spread the virus efficiently to new host - usually before the adaptive immune system can be fully activated.

This tactic of ‘reproduce and surrender’ is so effective that a person often can be reinfected at a later time by the same strain of rhinovirus.
Rhinovirus
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