PLEASE NOTE:

MyNews24 is a user-generated section of News24.com. The stories here come from users.

 
Andy
 
Comments: 98
Article views: 1296
 
 
Latest Badges:


 
View all Andy's badges.
 

Was the immune system designed or was it an accident?

10 February 2014, 15:03

Was the immune system designed or a big accident?

The immune system is actually an astonishing array of structures and mechanisms designed to defend us from a wide variety of agents, including bacteria and viruses. The mechanisms, in turn, can be grouped into two complementary systems. The first mobilizes an attack on invading microbes within hours. The second takes several days to respond but targets the invaders like a well-aimed arrow. This second system also has a good memory, so that if a specific invader returns years later, this enemy will be met with a rapid response. The whole system works so well that often you do not even realize that you have been infected and effectively defended. Also amazing is the way the immune system distinguishes between foreign substances and the hundreds of cell types that make up our body.

Microbes sneak in through our breath, our food, our urogenital tract, or breaks in our skin. When the immune system detects intruders, it sets in motion a cascade of reactions involving dozens of precisely designed proteins. Each component in this cascade activates the next to amplify the counterattack. The process is mind-boggling!

What do you think, was the immune system designed or did it come about on its own?

Disclaimer: All articles and letters published on MyNews24 have been independently written by members of News24's community. The views of users published on News24 are therefore their own and do not necessarily represent the views of News24. News24 editors also reserve the right to edit or delete any and all comments received.

 

Read News24’s Comments Policy

24.com publishes all comments posted on articles provided that they adhere to our Comments Policy. Should you wish to report a comment for editorial review, please do so by clicking the 'Report Comment' button to the right of each comment.

Comment on this story
98 comments
Add your comment
Comment 0 characters remaining

Read more from our Users

Submitted by
akaRags
Who cares?

So who will make a difference when it comes to decreasing the high and violent crime rate in this country?Certainly not an angry expat who only posts stories onto Facebook. Read more...

0 comments 90 views
Submitted by
Confidence Seleme
Leave a legacy that has legs

It’s up to us what kind of legacy we leave. My advice…leave a legacy that has legs. It must be the kind of legacy that will continue to walk and march boldly even long after you’re gone.  Read more...

0 comments 12 views
Submitted by
Onthatile Mogotji
Back to colonialization – 39 year...

In 1976 students all over South Africa protested when the government of the time wanted to introduce Afrikaans into black schools. The infamous Soweto uprising and the killing of people as a consequence. Read more...

28 comments 2346 views
Submitted by
Blackie Coco White
Why racism in rugby must fall...

On that fateful day in 1995, when a great black icon - other than Shaka or Dingaan - dared to cross the threshold of a laager, time stood still... And a country held its collective breath.  Read more...

27 comments 1077 views
Submitted by
Hubert Khobane
R 19 billion and 36 000 ghost emp...

The Northwest Province has set a record, no not a local record, nor a national record, but for that matter and international record! Read more...

11 comments 1444 views
Submitted by
ohomen171
Memories OF Rats On Okinawa 44 Ye...

Last night Elena made a list of all of the countries that she had visited around the world. Her list came to 22-23 countries. Read more...

6 comments 779 views
 

services

E-mail Alerts The latest headlines in your inbox

RSS feeds News delivered really simply.

Mobile News24 on your mobile or PDA

E-mail Newsletters You choose what you want

News24 on Android Get the latest from News24 on your Android device.

SMS Alerts Get breaking news stories via SMS.

Blogs Your opinion on you, me and everyone.

TV Get us in your home, on your television.

 
Interactive Advertising Bureau
 
© 2015 24.com. All rights reserved.
There are new stories on the homepage. Click here to see them.
 
English
Afrikaans
isiZulu

Hello 

Create Profile

Creating your profile will enable you to submit photos and stories to get published on News24.


Please provide a username for your profile page:

This username must be unique, cannot be edited and will be used in the URL to your profile page across the entire 24.com network.

Settings

Location Settings

News24 allows you to edit the display of certain components based on a location. If you wish to personalise the page based on your preferences, please select a location for each component and click "Submit" in order for the changes to take affect.




Facebook Sign-In

Hi News addict,

Join the News24 Community to be involved in breaking the news.

Log in with Facebook to comment and personalise news, weather and listings.