If I understand correctly, it is in fact possible to tell the difference between an infected animal and a vaccinated animal.
Does mass vaccination entail commercial restrictions? Some traces of the injected virus must be left in the animal.
Yves Perron Bloc Berthier—Maskinongé, QC
If I understand correctly, it is in fact possible to tell the difference between an infected animal and a vaccinated animal.
Does mass vaccination entail commercial restrictions? Some traces of the injected virus must be left in the animal.
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