Some Experiences with Mallein in Cases of Nasal Discharge

Some Experiences with Mallein in Cases of Nasal Discharge


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l\1.R.C. V. S.

(TRAr\ S I'ORT).

THE subjects were remount s purchased by the Briti sh Army 1n U.S.A. , examined previou s to purchase a nd declared free from conta g ious or infectious di sease. They were railed down to the shipping wharves in cattle trucks, and many of them were s weatin g pro.fusely and showin g symptom s of catarrh on arrival. After drinking at a cold water trou g h they were put on boardship at th e rate of abo ut 200 an hour. They all drank at the same trou g h and catarrh and pink-eye developed amongst th em. I te sted numerou s horses with th e mallein t est , whi ch had persistent na sa l di scharge with uncharacteri stic lesion s of the upper air-passa g es. N one , however, rea cted; but after a few clays a vi si·ble diminution wa s noticed in the cata rrha l flow an d soo n afterward s its complete di sappeara nce foll owed. Thi s did not a rise from a simple coin ciden ce of favourable circum stance s, for in all cases, even the mo st obstinate ones which had withstood the usual r emedial mea sures, the same fa vourable re sult took place. In doubtful cas es I g ave a second injection, timed as near as po ss i·ble to within three days of the approximate dat e of Iandin o·, which was followed always by apparently complete recovery and cessation of nasa l dis·c harg e entirely up to the time of landin g, after whi ch I lo st sig ht of them. Remarl~s.-From result s it appears that mallein is effe ctive a g a in st a non-specific nasa l di sch a rge . The mallein wa s inje cted subcutaneou sly and wa s obtained from the Royal Ve terinary C olleg e. The ophthalmic mallein te st was not u sed becau se cases of pink-eye were prevalent and it wa s con sidered that in m any in stan ces the ophthalmic te st wo uld not have bee n r eliable . My remark s app ly to horses and not mule . Th e vaga ri es of the reagent on the latter, judg in g from the repo rt of such an experien ced a nd we ll -kno wn man as Mr. Scott, F .R .C.V.S ., B rid g water , are, to say the least, somewhat embarrass in g and disconcertin g, and a source of anx iety to veterinary surg eons en g a g ed on tran sport work . Am eri can practitioner s and tho se in charge of mule s in the Army o ug ht to have experien ce of mallein as it concerns the mule.