[Experimental vaccination of SPF chickens against Newcastle disease using the method of coated-millet vaccine from a thermotolerant variant of the LaSota virus]
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The thermotolerant variant A300 of LaSota virus was used to vaccinate 4 week old specified pathogen-free (SPF) chickens by feeding them with virus coated-millet. With vaccine doses above 10(6)EID50/bird, HI antibodies developed and protection to challenge was ... ...
