Show Mankind d Will Some Day I Be Proof Against Disease YOO 1 E knows know when aman a IL aman ILman man luis h hire ls once had yellow rover raver E md curd lie he never 11 r contracts tin the disease again vO matter how auh h tic nn exposes himself to Infection 1 hl a S lo to le 1 the or orRan g ii 1 Tanta ins which t the malady Is called immunity and In ht tropical countries where yellow clow is In always present It ll llo 1 la Is turned t to lo o profit t In val ways nn S a an says 3 s the Ine Denver foal Thus Thull thc h 1 regiments o of Immune Were Wele un on In the thu south Muth for service In the fe t v Cr ridden country co try about Santiago Again the last laal epidemic of yel yellow low loll fever In hi New el Orleans many persons persona r ons purposely cJ exposed to 10 Infection lion tion the disease e In a avery 1 very CI mild form tarin find and they thoy concluded cOn that Ihal It tt they were Infected c they theS the would quickly mid and would bo be o Immune t inure c severe severe epidemics In the fu tu turn tur such Immunity U I called caUl natural bur Im lilt Immunity m 3 f bC because u use It Il Is ln 4 du F ed In the rho thein in man bouy bOd by bUte U to mysterious work workings ings 1 s of or A 1 good gOOt goo 0 l many mall I diseases d I II ara s e J JI I VC v It In t nii troll trail jn do a R more inure or loss less marked torn torm yellow fever n us wo we ire have seen en Is one ono oC or them theta Smallpox c Is Js an on and scarlet culet refer fever are To n 1 h less K degree Mcree typhoid fever aura alfo convalescents is Immure Immune lo to future attacks thought though this Immunity is Ia varl 1111 able and lusts for but a few ell years Oth Other er r on the contrary leave soave no whatever One of ot this sort sorl 1 h influenza A man aught conceivably Influenza I every whiter wlm r for tor a i dozen there arc aie a n few tel terrible maladies which produce n r quite opposite opposite site effect Thee The most conspicuous of or P Is la I pneumonia which leaves elce Us Hs It not hot less l put snore more liable halite lo to re rei i J attacks fn In future Hut all dIS nes It Is I plain e a mull a III amount of ur Immunity behind them ilL of l the ni they make mUe ilMi ti 1 I exit even If it like hike i In they an nil In III thelon the lung rua rUIl ot or nr A 1 luau num tor for example I l ts and the th genus Kerms In t lId his system Joi 01 a a couple of darn daja lif perhaps hups his s blood with lIh them In vain wain lIln but bit at ul mho end Of or the Hie week It be begins beIn begins gins In to 10 win In iii lii tilt the lh FIJI ins or orthe the poisons they sect etc are tiro and an 1 the man Is hs well again At Al this moment It Il It III obvious bIous he Is 11 Immune 11 to because his blood has hus In II It Il enough germ killing power to 10 counteract the thc activity or of the countless of If t germs elma coursing him him la Fu the time being In his brief he Is 15 proof l t influenza Six months or 01 a I a year Utu laUr the Ill disease may lay by 11 him hint low lown again n lIln but buL M su 0 as his hla blood blond Is keyed up to 10 Its his work wark of C germ senti Killing mid and midI nn I poison olson lie he Is ha to 10 all Intents and 1111 1 purposes an oil Immune It U early occurred to medical that nemo means be e de deI I for tOI Immunity I nit d aily Two 10 thousand ago human hum ie I e had proved that thaI a It t man who n had hll once suffered from smallpox II pox could not nol taKe tak thin the disease o and there them were crude cuide attempts at vaccination In It the thi cl century Tenner nn an Eng lishman HO guvo I iw subject long study and the result was the process of af vac vaci ae i ns nil we Wc e know It today tuba this Ihl process consists In lating a t man with a It mild variety of or m order that limb I he hI may be Ue Im Int imin to 10 moro morn virulent violent and Mit forms of the maladj Tide This mild mill younger sot son of smallpox Is la called CD lied cow cowana cow I anti ana cottlo Buffering front from It are ans tn 1 ns nil unwilling manufacturers of or rh Ih It 1 causes scabs to tu form upon Vr I le I oC ot their bodies and In Mibs arc iro million of qt cowpox Harm Thi Ihl thus Uius us is IR mode the c cabs In tome same appropriate medium V you OU nip the doctor hea jour arm orm until the skin Is II brisk i and puts a n few drops drop of nC virus l lino so the tho little wound You are thus In with con cowpox pox and In a tow taw days the symptoms of ot time the dl disease which err 1 the n of or smallpox In ht mini You feel fec tired and per d and your oUr arm ami wells swells and sore pore or In III n It week or two you ou thereafter you nr Immune not only to 10 cowpox but bill also to smallpox x In somo omo persons pet this Immunity mats lasts for life lIa In n others thera It II lusts n a to b hut but lit B R few Y yearn ate Hance the medical nl rule nile that for till tI sane everyone should ha h vaccinated every two to or throe three t years yeara ears To ro understand stand exactly ho hm vaccines end produce artificial immunity altY It II Is f a necessary nc ce a wary to recq r recoil eq II the tho fact that the germs of ot disease e In III their theil efforts to destroy the lives lIeR or of hum n work In two IWO ways hays IUS In III none diseases dl tho tha germs themselves do the evil work l by y clogging and down donut the tho tissues sues allow One such uch di disease enno Is tuberculosis sis nod another IB IR leprosy In Lt n other maladies the perms germs secrete violent poisons which on being distributed uteri UINI through the body bOIl In ht the blood crip cripple cripple in Ind n Id l disable le vital organs R an s r much n as M 1 P carbolic or son ron cripple and Inti disable them Such Stich a disease is s 11 diphtheria and another of or orthe the saute came class Is hs lockjaw there are diseases d which C work In lu both bath 1 wi w a e ys ls e Diphtheria Is la one such and pneumonia la Is another r Now ow r Uv he Ih problem before b fore the tho bacteriologist logist t Is la to produce to II kill the germs In the thc first class elnas ot or maladies and something to 10 neutralize the poisons In the Ih second SC In the third class cines either Ither method meth dot or of procedure Is la allowable thought though In th reits e 11 them then selves are lire usually neglected n and the greatest effort 1 he put Into the he fight th their lr In all of or tile the processes prOC K so o Tar devised the capacity of at the blood and 1 I I tissues for fot producing natural Immunizing sub substances su stances within themselves Is called Into ploy 1110 In vaccination for I example the blood In la II stimulated by by the Introduction or of cov co pox terms genus Into producing substances sub Rul substances stances capable of slaying the tIe germs germ not only of con cowpox pax but hut niso of O small smallpox smallpox pox amid nil substance by hi the tile fact tuel that thai th they y remain In the blood a long while niter n the lest last cowpox perm Fern has hos been killed produce Immunity lo to small pox pot In fn a word the presence of a n perm germ alwayn stimulates the tho blood to 10 produce something to lo kill that germ That unmet him has 1105 been ben given glen different names flames by b different Investigators but all now agree that It appears In Ir the yel yellow yellow I low serum In which the red Ie and white of or the blood float about When It Is II present the white while corpuscles ce gobble the germs Reims and nn kill thorn them When Khen It Il In Is not present Ir time the germs erm put pUl the white corpuscles to 10 night light Kow o It happens happen that when wh n the he blood t 1 by any n n cau cause e or Is it Im plated into In Into to 10 producing substance enough to 10 kill a small AmaH number ot or germs or a n large number of weak anti and BOt disabled germs it does to not stop stOll when UN Ita II work Is 1 done dOlle but keeps on In manu manufacturing a n large lore extra stock lock of germ substance This extra stock remaining rm In th blood cause the hn Im Immunity which follows an ot of jcl yel low lost fever ever The pl before the bar bac bacteriologist Is ha to lo make the blood blond produce I a lot lol of or this thle substance whenever ho hoso hoso so ao h wills It Ordinarily he does It by b Introducing Into Irto the blood u a 1 quantity at of o attenuated attenuated cern cerms In his hili laboratory 1011 h hI he has IIII hasa a n large stoK I of ot or of all nn sorts at nt atall atall all nil tines time and there al ruo hall hair a n n ways whereby h he ho may attenuate null and stun th them m One way wa Is s to expose them to 10 the air Another way o Is s to pa paws 5 them through the th tissues II or ot tom ono which Ims 1109 a n natural antipathy to then them and Jn in conse iu is h capable of hf E weakening and pain hem hom Still another way Is by b heating healing them until th Ih y ars nr Just uH short of at dead Yet another tray wO I is by I paralyzing and halt half killing i i ling then them with chemical anti I septic Wh n th the has stun shin stunned I tied net a n mass masi of or germs by b one olle of or J processes he hI t a n number of or them Into Inlo the tho th veins reins of or the moan man he desima to 10 immunize Immunise un At I once time the blood or of this man inan begins elne to secrete a sub substance capable or ot killing them This sub Mutt substance stance Is soon present pr In to kill all nil of ot the weak wea k germs j n I r tho the t lias Introduced Into In Ia his reins Inn but UK the Mool spurred on 1111 l hy by to 10 male make IS II ance anee sure KUI UI keeps I on nn lug Ing the thc substance for fot sonic some limo titer As is i t result Jesuit the thin patients veins be become become become come full filth of or It t and If It any nn more inure I of ot that thai Ihl sort SOft happen In they th i will be killed out of or hand baud In Tn other words lie he II has hus be hewn m Some Same Sometimes times limes tills thus ia lasts ts a n good Iod while at t other times timea It Is short abort Ordinary vaccination present r the brat best example of ot such uch Immunizing by h Ih the use IIse of or weak germs but hill ot of Into lain It 11 has hUll been beau found possible to ui the tho th same ini n uros against uphold typhoid t fever r rand and Asiatic thin th Man tear the Japanese J aimy slaty surgeon sur SUI surgeons geons geon In the Japanese e troops against a typhoid liv by II Inoculating them m with small doses dois of ot weakened I w Uphold t ft a tt mC rm rn I The lh remit w was as that there vas ens wo little If It any typhoid I in III the Japanese army at my and thousands I nf of lives 11 saved The rhe sonic thing has been ben done clono In lit Ihl case of or Asiatic cholera with Ute thin same sante result re TBS TOO roo LATE LATR But nUt In III the great majority of or cases canes It U Is 1 Impossible to 10 In time litre In III other words orI the patient goes goe O to an n a noctor doctor octor not nol he hs contracts contract a 11 ills dis case Ise but bUL ard The problem then than Is not to hake him u U II hut but to O combat and kill 1111 it hit th the germs l thready In III his hili body ir nr I to 10 counteract the poisons they secrete In n this COSt case It II Is III necessary to let letsome letsome some other othel animal do the work of or pro pio th lh the anti erns substance or the thu poison ph ann antidote Ie In a diphtheria for 01 In Instance Instance stance the till horse hol 11 Is nerd A healthy animal is s in with nill the lit to 11 microbe and because thin the horse has lus lusa hasa a sort sorl of natural antipathy to lo It 1 It con contracts contracts tracts the disease E In hl a 11 mild form Hut But all nil the saute same am Its blood produces nn no im immense inte manse mense quantity 1 II of or n a substance the properly of uC counteracting or 01 neutralizing the effect of oC the toxin or secreted s by h the tho diphtheria germ Whon tho tha veins of ut the tho hor o are nr full fullor of or thin this sonic some of oC the tho animals blood 1 is down nit off and Injected into III to the Uie h veins I It of n a human diphtheria I The Tho antitoxin In tit the horses blood dou Pot not lose Its itA power by its lis voyage o Into human II t clan Instead It h resumes at al once ole Its lis old Ihl business of tint the poison pol lt by b IlI n germs genus AH Aa Ill a re rt unit suit mho 1111 poison polson In Iti the human patients s veins emits Is la rendered r Innocuous and thi Ih 1 nt recovers rs Su HU vl li h m ID la thin tho nt net Ion o of ur t i t diphtheria antitoxin which hAS re me reduced r the IIII death rite nue of or diphtheria front from bo 65 pot per i Went cut to lo 3 pre per cent centAK enl Again AK n In I it Is I possible to tu rc rep from 1011 the veins eln ot of an nn animal nu howl to the veins 3 or M orri MII ri It human humn being blood of t which n has IL au I III red not the tho captivity capacity for germ patron but bUl the Ih for kill lull lullIng killIng I Ing germs themselves t The process In III general Is I the name amo and ha Ire h t tire tue the suite eime Title This scheme ha has him hero I 1 in en typhoid fever fe r cholera the tho bubonic l pneumonia and hilts bulls There re are re also 11 other uther method of oe pio lIell artificial Immunity but hilt limited that hot t they 1111 ho hn mentioned nI rt 1 hut bill briefly Ono Opo consists In accustom accustomIng tom Ing lug the human bunion hotly body hod to 10 germ poisons by b injecting them in log doses t s Another which has ham the anie c nl r Ie at a t bottom consist a i 11 i p dead germs Reims In II th those th tane 1 le leIn In lb se poisons n lie ile 11 TI 1 i 8 fi l been en I ed t gWin 1 is 1 fever fler the lee and a nn a 11 disease e of ot cattle H It is j tightly highly probable that thou a 11 afew few years It will b tin hA possible in mil I lie he vac ic 1 a Q great many dl pases tuberculosis I u Koths 1 with still which new ne moils ni In me I II rub nl now being made mado of oC l In i ns IlIs out of nr the bodies nt lit II bacilli When this tuber luber calm wile wim first tried It was scan iv It failure but It In le now how seen that this Ihl h Was 11 duo nol II nn I to Ia a In the tile dy Itself It lt but IU tr to In Improper or of administering n It It lt Is III also niso probable that touch much i rog re ress will win be In ho R nil I w Those Thine for U ore are II now In III 11 use ami there is Ie hike Ilki that thai others other for blood poisoning pneumonia und and various lea les leaser ser r I will soon be perfected Even Ewen may eventually lold lloldI to ti I treatment treat s without the tI knife ami ut 1 those tho physicians Ih who Vho belles e that cnn can cancer cr H is caused by I n small email say may that It too wilt will b be |