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field trials with veterinary vaccines
título field trials with veterinary vaccines requirements and controls applied to bovine serum used in the production of immunological veterinary medicinal products
we must still adopt a cautious approach, which means being as careful as possible in both the field trial and marketing phases.
o princípio da prevenção tem de continuar a ser o ponto de partida, o que exige o maior dos cuidados, tanto durante a fase de produção como durante a fase de comercialização.
chickens were taken from the field trial and challenged (exposed to infection) in the laboratory to demonstrate protection after vaccination.
as galinhas foram retiradas do ensaio de campo e infetadas (expostas à infeção) no laboratório, para demonstrar a proteção após a vacinação.