ae RO OR Re a ] a Hi Her eH Pb ists a ae SANA ca nara . Ra renee ee Seta Sim 1¢\ Mey 1g 1b CORNELL UNIVERSITY THE Hlower Heterinary Library FOUNDED BY ROSWELL P. FLOWER for the use of the N. Y. STATE VETERINARY COLLEGE 1897 This Volume is the Gift of Dr. V. A. Moore. 5577 LIBRARY iw Wllows- THE PATHOLOGY AND DIFFERENTIAL DIAGNOSIS OF INFECTIOUS DISEASES OF ANIMALS Prepared for Students and Practitioners of Veterinary Medicine By VERANUS ALVA MOORE, B.S., M.D., V.M.D. Brofessor of Comparative Pathology, Bacteriology and Meat Inspection, New York State Veterinary College at Cornell University, and Dean of the College FOURTH EDITION REVISED AND ENLARGED WITH 120 ILLUSTRATIONS NEW YORK THE MACMILLAN COMPANY 1916 All rights reserved "=m eee aes oe ink A. MOORE COPYRIGHT I906 BY VERANUS A. MOORE COPYRIGHT 1908 BY CARPENTER & CO. COPYRIGHT I916 BY THE MACMILLAN COMPANY New and Revised Edition Published September, 1916 SF 16 M au 1Gib PRESS OF W. «. HUMPHREY, GENEVA, N. Y. TO DANIEL ELMER SALMON LARGELY THROUGH WHOSE LABORS THERE WAS ESTABLISHED IN THE UNITED STATES DEPARTMENT OF AGRICULTURE THE BUREAU OF ANIMAL INDUSTRY WHICH HAS MADE POSSIBLE EXTENSIVE INVESTIGA- TIONS INTO THE NATURE OF EPIZOOTIC DISEASES IN AMERICA AND WHO FOR TWENTY-ONE YEARS DIRECTED THESE INVESTIGATIONS THIS VOLUME IS DEDICATED. PREFACE The purpose of the Fourth Edition of this book is to provide students and practitioners with a text that will give them information on the etiology and morbid anatomy of the specific infectious diseases of animals and the methods available for their diagnosis. It is possible, within the limits of a workable text book, to include but a small part of the available knowledge on each of these diseases. To supplement the necessarily brief account, a list of the more important publications is appended to the description of each. It is believed that these references will give the key to the literature thereby making it possible for the student to familiarize himself with the present knowledge of the subject. The sanitary significance and the economic importance of the infectious diseases of animals are calling for a better understanding of their nature and more efficient methods for their control. These will be attained only through a more definite and specific knowledge of the etiology and morbid anatomy of each of these maladies. This edition has been carefully revised, much of it rewritten and numerous additions made. It has been kept, however, within the limits of a text book. Two appendices have been added, one on the requirements for interstate shipment of live stock and the other on the Federal regulations for the veterinary inspection of meat. These may be of much assistance to veterinarians. The diseases not indigenous to, or imported into, this country have been accorded much less space than those existing here. The desire is to emphasize the nature of the diseases our veterinarians are liable to encounter and, at the same time, give the characteristics of the others. The same plan of presenting the subject and of grouping the diseases according to their etiology that was followed in the previous editions has been retained in this. I desire to express my appreciation of the kind reception accorded the third edition, and for the helpful suggestions received from its readers. It is hoped that this edition will be still more useful to the student and practitioner. My thanks are especially due to Dr. C. P. Fitch for making several of the photographs particularly those of glanders, reproduced in the the text. V. A.M. v PREFACE .TO THE FIRST EDITION The literature on infection and the etiology and morbid anatomy of infectious diseases of animals is exceedingly rich in the results of new discoveries and important investigations. However, students just beginning this study and following a prescribed curriculum have not the time nor are they prepared to read with profit the detailed records of original research. Such publications seem to be better adapted for those doing advanced or graduate work. Further- more, many of these publications are out of print and are only avail- able for consultation. For these reasons it is believed that a volume containing the rudiments of the subject will be of use to the student and an aid to the teacher. It is also believed that such a work will be of assistance to practitioners. In preparing this volume the aim has been to bring together in a concise form the fundamental facts in the pathology of the more common infectious diseases of animals, especially those existing in the United States, with which sanitarians and the practitioners of com- parative medicine must contend. To this end the current literature, the reports of the investigations made at various institutions and experiment stations, as well as the standard works on comparative pathology have been freely drawn upon, to all of which full acknowl- edgment is hereby made. In order to bring into consideration the clinical value of a knowl- edge of morbid anatomy a few of the symptoms or antemortem manifestations have been included. It is hoped that this correlation of symptoms and lesions will stimulate a deeper interest in the study of comparative pathology and thus render it of more permanent and practical value for those entering into the practice of veterinary medicine. In selecting the subject matter care has been taken to avoid, as far as possible, the introduction of results concerning which there are controversies. It has seemed best to deal with those facts about which at the present time there is little or no doubt. After the discussion of each disease a few references to the literature are ap- pended. These are intended simply to bring the attention of the student to afew publications respecting the cause and morbid anat- omy, considered in the light of modern etiology, of the disease in question and to a few articles containing the results of original research. vil vill PREFACE In order not to complicate or unnecessarily expand this text, a knowledge of general pathology and the principles of bacteriology has been taken for granted. The difficulties involved in the preparation of such a text are both numerous and obvious. The indication of errors or omissions with any other criticisms that would tend to better the volume and increase its efficiency for the student will be thankfully received. V. A.M. TABLE OF CONTENTS PAGE List: of Wustrations 23. 53 65. qnuldewasarseeesdac idnare en apgeeeend asain xiil List of reference books. ........0..000 00 0c ccc cece cece cee cecaetuseeseesnees xvi CHAPTER I Erro.oey, Inrection anv Speciric Inrectious D1srasEs Etiology wuies-t aes was qcienace Gs ec eis a8 ciadlugniend ton hed oie e Ace marae sone 1 Taf CUO: ati Sis: cs -eisiontes sta emtpieaevane tos" deatucatans es ak incase ia eh aanenenneteeald ae hoors 2 Woulidinfection) 23.0... nade vapenaamardcuea axiaauen pea ee OReeGlea eens sae 4 A specific infectious disease... 0.0.00... e eect eeeeeenees 7 Dissemination of specific infectious diseases... .......0.0000 0.0 cc veeceeeeeeees 10 Diagnosis of specific infectious diseases... 0... 0.2... ccc ee cece eee 12 Classification or grouping of the infectious diseases...........0..0.0.0000. eee 16 BotryOmycosis! .22.20 pdwagaw Geatadhed dituae edi andeecupotnmanenanoannaes 19 Omphalophlebitis or navel ill... 20.0620 e eee ees 20 White scours or diarrhea in calves... 2.2.0.0 ccc eee eens 21 Infectious suppurative cellulitis of the limbs..........0....0.00 000000. c cece eee 24 Fistulous withers and poll evil... 0.00.0... 00000 c cece cee cece eeveeeeeeees 25 Infectious mastitis... 064 ccu ped eee casas ems ben peebebeuebewamenaniaabeds 25 Contagious algalactiar. «2 cier sesthd bein Baa RA oh ada ar ARR R ES tp 28 CHAPTER II Disrases Causep By Bactrerta—GeEnvus STREPTococcuS General discussion of streptococci.......... 00 cece eee eens 30 Classification of streptococci... 2.0.6.6... e ens 31 Distribution of streptococci in nature. ...... 20.006... 31 Pathogenesis of streptococci... ........6 cee eee ene tees 32 Strangles: croatian ties nde Oe ee pas Meta iaa ner has sleneaNes 33 Apoplectiform septicemia in chickens. .........00 00000000 c cece eee eee eee 38 Streptococcic:mastitiss «caress cages heey sere as sword sey eee eee de mem 40 CHAPTER III Diseases Causep BY Bacrerta—GeEnvus Micrococcus General discussion of the genus micrococcuS............-5.-20 50sec eee eens 42 ST alOS18 Sst pite to aheh alate araeaqes anche ga snabaneney yee waht aR aaa Go Onsantds 42 CHAPTER IV Diszases Causep By Bacrerra—Genus BactTErium General discussion of the genus bacterium. ............ 00.050 e eee eee ene 47 Swine plagues :ociics sc marewaccn ad eae aes aamnaihal aihycissinehbtudaanucnrias aie 8 POET RES 48 Hemorrhagic septicemia in cattle... 2.0.0.0... 0c cee teens 59 Fowl] cholera.......... side nets eae achat Naas ARE RI aoa MEAN ORE 69 Goose septicemia ....... 2.0.00. cece eee eee te tenet nen een ener nnn ee 74 Fowl typhoid 2 zea csc -c00-b bdsciusie ond 2 S45 eae EY PERT EE a ea eAIRaE SS 17 x TABLE OF CONTENTS , PAGE Swine erysipelas... 0.0.0.0... ccc cece cee eens ee bb eee ee eesti teeieeeeeas 84 ADthraxy dienesedyiemaaGe ene» ga bweeu gon Babllans net emg onemunm eg seaeies 89 Glanders. i364 sa chaead ese Nab 484s COSOROGEN Do dere sda babes sume pa 109 Tubereulosis: ssc o aasasigcisescatogiy ace ohaw aaetuscnad Be BS ESSE LAA eS 146 JOLNE'S GISEASE) i iis oinanuea da hued dukes an nGlenme DADE da DERG eaamoneio Dee eS 191 Infectious abortion in cattle... 0.0.6... cnet nent e eens 198 Ovine caseous lymph adenitis (pseudo-tuberculosis in sheep)...............005 209 Astheniainfowlsand pigeons) .0¢.¢22005 ¢ongsbads