Krijg ik net via fb het volgende artikel door:
http://www.naturalhorse.com/PDF/vaccination-part-1.pdfwaarin:
I believe that horses should be vaccinated for the first time one
month after weaning (not before 7 months). The foals’ immune
system doesn’t mature enough to produce antibodies until after 6
months of age. The second vaccination should be given 30-45 days
after the first and the last vaccination should be given one year after
the second.
That’s it, except for tetanus. Tetanus should be given at the same interval initially, but we feel that a horse should be given a dose of
tetanus toxoid after each deep cut or puncture wound, only if it has
been more than one year since the last tetanus vaccine. If tetanus
antibodies last 10 years in humans they will last 10 years in our
horses. So, if you prefer to vaccinate routinely against tetanus then
you should not do it any more often than once a decade.