Wendy Marsden wrote:


I also feel confident that I could adequately remove him from the company
of adults who are not immune so that I would be endangering no-one else.

Oh really? That means keeping the child isolated until he's old
enough to leave home.

You do realize that most childhood viral infections are
contagious BEFORE the symptoms are bad enough that the infected
one appear ill even to the most watchful parents. With
chickenpox, the spots appear only AFTER the child has been
shedding extremely infectious virus particles in saliva and nasal
secretions for a few days. They might appear to have "the
sniffles", but that's aboiut the extent of the symptoms.


Tsu

--
To doubt everything or to believe everything
are two equally convenient solutions; both
dispense with the necessity of reflection.
- Jules Henri Poincaré