On Thursday, November 7, 2013 7:20:49 PM UTC-6, Tom Hendricks wrote:
> This study
I posted this, but didn't study it enough. Note this quote.
WHY INFANTS MAY NOT HAVE A WORKING IMMUNE SYSTEM
One of newborns' biggest vulnerabilities is largely invisible: In the weeks after birth, babies are especially susceptible to infection because their immune systems aren't fully functional. There are a handful of theories to explain this liability, and now a research team has added a new one to the list: Immune suppression in early life might help prevent inflammation in the infants' intestines as they become colonized by the helpful bacteria they need to stay healthy.
Newborns are more likely than older babies to catch, and die from, serious infections. The reason is fuzzy--indeed, there may be more than one explanation. One theory is that much like their brains, their lungs, and the rest of their bodies, infants' immune systems just haven't fully matured yet. Another is that both mothers-to-be and their in utero companions have suppressed immune systems, so that neither rejects the other. After birth, the thinking goes, it takes babies a month or so to boost their immunity.
Question then, are most animal infants born vulnerable?