This article from Scientific American discusses multiple resent studies into the development of the immune system in infants. The first study discussed compared the immune responses of newborns that were born premature vs. full term. The study found very little difference between the two. A second, more broad study compared the imune systems of thousands of newborns from around the world, and also found very little variation. Scientists are now using the information from both studies to formulate a more clear baseline of what a healthy newborn immune system should look like.
In class we discussed the elements of the immune system, as well as how infacts are colonized at birth with microbial life. This article drew connects between these two things. It concluded that because most newborns all go through the same rapid colonization, their immune systems also evolve in the same way.
This article was interesting because I would not expect the ammount of similarity they found to be present. Also, I never considered that premature babies could have different immune systems. This article was clearly written for the general public. It summarized and cited multiple primary studies and included quotes from the people that wrote them.
Now that we know that all our immune systems are basically the same at birth, will we be able to determine a specific age when they start to varry?