I have read this story and all I can do is shake my head. Being a mother of four and a few years ago I got three of my daughters the flu shot my thinking is that I would kill two birds with one stone. While getting my check-up I though why not get the girls their flu shot so doing what a mother feels right I did it and maybe four days later my girls were sick as @*&%, all had fevers all stopped eating and I even called 911, and was told that as long as they weren’t dehydrated etc. they would be fine. Lets just say that my children have not gotten a flu shot since. So I say as a parent you have to make the right choices for your child. So my heart goes out to this family as well as my prayers.
The Calculation hypothesis is considered academically to be "a thoroughly viable hypothesis", though not certain.  It was a traditional Jewish belief that great men lived a whole number of years, without fractions, so that Jesus was considered to have been conceived on March 25, as he died on March 25, which was calculated to have coincided with 14 Nisan.  A passage in Commentary on the Prophet Daniel (204) by Hippolytus of Rome identifies December 25 as the date of the nativity. This passage is generally considered a late interpellation. But the manuscript includes another passage, one that is more likely to be authentic, that gives the passion as March 25.