Show CHOLERA REMEDY NOW PERFECTED disease costs hog raisers twenty millions annually by W H BOYNTON professor ai S 1 0 of 0 veterinary science 0 1 1 i of ft califor hog cholera is is admittedly one of at the most destructive of all animal diseases the yearly cost of this disease has been estimated at between and in the united states alone within the past few years the author has hag developed at the university of california college of agriculture a new tissue vaccine which is expected to cut this annual cholera tax very substantially this vaccine is known as and is now available from commercial companies it has been used on more than hogs on the pacific coast and in the middle west is compo composed sedof of finely ground glandular tissues from hogs infected with cholera these tissues are taken from the hogs at the height of the disease and then treated with The result is a vaccine which cannot produce cholera in a hog but bitt does produce an active immunity in to the disease when is used vaccinated vaccina ted pigs can mingle with unvaccinated pigs without transmitting cholera to them furthermore pigs harboring latent infections such as pneumonia or enteritis at the time of vaccination are not subject to the danger of flare ups of these infections due to the lowering of body resistance this danger of lowered resistance followed by death from some secondary infection has been one of the major drawbacks of the serum virus method of vaccination for cholera the vaccine is not intended for pigs that already have cholera it should be given only to swine that do not have the disease since a period of at least three weeks is required to build up a satisfactory immunity in the animals pigs which have been exposed to cholera or are suspected of having it should be treated first with anti cholera serum to make sure that the infection is checked later they can be given the tissue vaccine at present this vaccine is not recommended om orn for garbage fed pigs although successful experimental results have been obtained by administering the vaccine before am after weaning |