Six Texas children die of whooping cough, prompting statewide health advisory

[Ilsa]

1. Age two months is when most babies get their first vaxes.

And then it takes two-plus weeks for the protection to kick in. Everyone else around this baby should have been vaccinated before so they wouldn't have subjected this infant to this horrible disease.
I suspect some that did the infecting were adults whose vaccinations were out of date.