Blog Search
Blog Statistics
  • Views: 3410619
  • Articles: 1354
  • Comments: 1030
  • Status: Public
  • Who's Viewing: 0
Posted by bio_man   October 18, 2019   22396 views

Summer is officially over, and fall has arrived. With this season comes runny noses and doctor visits. Save yourself the time and money, because it's either the common cold or the flu, both of which have no cure other than to rest and endure the discomfort. Luckily, you can be immunized for the flu, but not the cold. In fact, many people battle the cold several times a year, rather than developing a natural immunity towards it, why is that

The primary reason that immunity generally does not develop against the common cold is that there is not a single cause of the disease. Over 200 serotypes of viruses, including enteroviruses (previously called rhinoviruses), coronaviruses, and adenoviruses, can cause the symptoms of the common cold. Therefore, any vaccine designed to protect against the common cold would have to include antigens from all the different viruses that can cause the disease, which is simply not practical or even feasible. The exception to this is the vaccine against adenovirus infections, although it is currently used only for military recruits entering basic training.

Because of the vast number of viruses that can cause the common cold, even natural immunity is difficult to obtain because a person may not encounter the exact same virus serotype twice in a lifetime. In addition, the receptor for ICAM-1 on the virus particle is not accessible by antibodies, preventing antibody neutralization of the virus. However, the frequency of colds does decrease as a person ages, so some immunity undoubtedly occurs, including some herd immunity.


Cold virus Microbiology Immune System Winter Fall medical Viruses
Posted in Interesting Facts
You might also like...
1 Comment | Write Comment
its all business
Posted on Oct 23, 2019 by cloveb
RSS Feed   RSS Articles Feed   RSS Comments Feed
More Syndication Links