We know little about this 2nd child, except the child was unvaccinated. BUT: I’d like to comment on the first child, and RFK Jr’s proclamation about the first child, which is highly likely to be bullshit.
According to the Mennonite Church USA website, the group with the first measles outbreak in Texas are Old Colony Mennonites - this old order group tends to be agrarian, and avoids modern lifestyle. Although not as communal as old order Amish, they live with a “village” philosophy and freely give mutual aid.
I have cared for old order Mennonites as a physician. It is highly unlikely that the Mennonite child was malnourished. Old order Mennonites do not eat junk food. Many farm or garden and preserve much of their own food. Their children eat healthy, well-balanced diets and have normal growth patterns. Along with the Amish, they probably have the healthiest childhood diets in the US today. A family in such a colony would prioritize their children’s diets even if impoverished, and would freely seek and receive food from within their community if needed.
RFK Jr. believes in “functional medicine”, and has stated that he personally takes “a ton of supplements."
RFK Jr. likely thinks if you don’t take supplemental Vitamin A daily, then you must be malnourished.
Meanwhile, the hospital caring for the majority of children with measles in Texas has stated this: many of their hospitalized children were admitted with unexpectedly elevated LFTs and even jaundice. This was attributed to excess supplementation of Vitamin A, resulting from parents home-treating, or trying to give prophylaxis with too many daily doses.