But does reductionist science have all the answers to animal health care. Laboratory tests are concerned with probability. There are no certainties other than a result. No vaccine manufacturer states on his packaging the risks in mathematical terms which are involved in using his product nor does your vet usually show you the packaging anyway. Many give very low proportional protection.
Double blinds shout the orthodox vets in support of their laboratory tests.
Biostatistics must be the only science invented to justify the results of animal testing. A double blind is an excuse, a technique attempting to overcome the small samples sizes used in laboratories. Compare two small samples together, check their statistical inferential differences and draw a conclusion. Ipso facto, you have a result on which millions of dollars, pounds, francs etc. depends. Give one sample group the drug and the other nothing to see the animals reaction to the disease.