360
2754107815011060120
4.851788012670106
Read991788012694156226296
the1323788012639116178
text1537788012639101170209
Immunity2890972012655172288365443482529599
Infectious10251152012847117164227289328367437507561
diseases16211152012871109164227288342404458
are21141152012863109172
caused23211152012862124193248310380
by27351152012870141
the29091152012839109173
invasion31171152012839108178240295334403474
and36261152012863131201
growth38631152012870117186288326396
of42941152012871116
microorganisms448111520128109146209256326397444513576645683738848900
in54171152012839109
the8511338012839110172
human10571338012892162272332402
body.14951338012892162232302336
Infection18661338012868139186247310349387458527
may242913380128131191263
result27251338012869131186256295334
from30941338012869116185295
direct34211338012893132179242304342
contact37991338012884153223263324387426
with425913380128124162201271
patients45651338012893154193232295364403457
or50581338012891138
from52311338012868115185295
indirect8511523012839110179219265327390428
one.13141523012870140202238
But10251708012894164203
the12641708012847116179
human14781708012879148258318388
organism19021708012878125195258327367421530
has24651708012878141196
a26961708012871
specific28021708012862133196258296343381444
capacity32801708012870132203266328366405476
of37891708012878126
resistance39501708012854117171210265308371440503564
against45491708012870140203241312366405
infection.49901708012846116162225287325365434505539
It851189301284786
is9721893012863117
called11241893012886149188226289358
immunity,15421895012639156272348426465512582618
it2219189301283978
may233318930128133193264
be26301893012894157
natural28221893012894157196266312375414
and32701893012886156227
artificial.35331893012886132170210256295358396458496532
A410018930128125
previous42591893012894141203273312382451506
attack48011893012886124163226287357
of51941893012892140
an53691893012886156
infectious8512079012839110157218280319358428498552
disease143920790128119158212275337391453
produces192820790128119165235306375438499554
a251820790128112
more266520790128159227274337
or303720790128120167
less32382079012889152207261
permanent353420790128119182229338398468531601640
protection420920790128120167237276339400439477547618
against486220790128113182244282353407445
its53432079012889127181
subsequent8512263012855125195249312382452514583622
infection.15082263012839109156218280318358428497533
In10252448012847117
the11782448012866136199
course14122448012890160230277330393
of18402448012898145
their20202448012865135198236283
growth23382448012898144214316353424
in27982448012866135
the29692448012866136198
body32022448012897167237307
many354324480128137197267339
pathogenic391624480128102164203274345414477546586648
microorganisms459924480128137174236283353423470540602672711766876928
produce8512634012870117188257327390452
virulent13382634012873112159228268329400438
poisons18122634012873143182236306376431
or22782634012873121
toxins.24342634012842112181221290344380
These28522634012886155218273336
toxins32232634012841110181219289344
cause36032634012865127197252313
the39512634012843113175
characteristic41612634012866136199246307368407470517555610648686749
symptoms49452634012858129237305345415525577
of8512819012870117
a10032819012894
particular113128190128100162209248287349418458520566
disease.173228190128100140194257319372435470
To223728190128117186
meet245828190128140200262301
the27952819012869140202
infection30322819012869139186248310349387458528
the35952819012869140201
cells38312819012894156194232287
of415328190128101148
the43352819012870139202
body457228190128100170240311
produce491628190128101148217288358420483
a54332819012892
chemical8513004012862133195305341404466505
antidote13923004012868137176215285354394457
which188830040128102171210272343
is2265300401284599
specific23993004012859129192254292339378441
for28743004012852121169
this30783004012843114152207
particular33203004012875138185223262324394433496542
infection38963004012845115162224286324363434503
and44353004012868137212
is4681300401284599
known48163004012874145214316386
as52363004012868122
an53933004012867136
antitoxin.8513189012862133172211249320389428498534
If1420318901285198
a15533189012867
patient16553189012874137175214277346385
can20743189012867129199
produce23093189012875122191261331394456
a28003189012867
sufficient29023189012859129176223261323361423493533
amount34703189012867176244315385424
of39293189012875122
this40863189012842113152207
antidote43283189012867136174214283354393455
to48183189012844113
neutralize49673189012875136206245292354392432495556
the8513375012839110172
toxins10593375012848117188227297351
before14463375012880142189258305367
the18493375012849119182
vital20663375012879119157220258
organs23593375012881128197260329384
are27783375012873119181
injured,29943375012850119159228276337407443
recovery34723375012857119181251321383430500
occurs.40053375012881144206276324377413
If44533375012857103
the45913375012850120182
human48083375012881151260320390
body52343375012881151221291
had8513560012870133202
not10893560012870139179
this13033560012838108147201
capacity15393560012863125195257319358396467
we203935600128102163
should22373560012855125195266305374
suffer26463560012855124171218281327
from3008356001284794163271
all33133560012863102141
infectious34903560012839108155217280318357427496551
diseases.40753560012871110164227289343405460496
If1025374401284793
the11543744012859129192
toxin13813744012859129200238308
can17243744012882145214
be19733744012890152
isolated21603744012859115184224285324387456
from26523744012866113182292
bacterial29773744012890153215254316362401464502
cultures35153744012882152191229300347408463
and40143744012882151221
injected42703744012859129168230292331394463
into47693744012859128167237
men,504237440128129189259295
an53723744012882152
artificial8513930012862109148187234273336373436474
immunity13613930012839148256324395434474544
can19383930012863125195
be21693930012870132
produced23353930012870118187257327390452521
which289239300128101170209272341
results32683930012845108162232271310365
from3668393001284793163273
the39733930012839109172
formation41813930012846117163273333372411481551
of47673930012870117
antitoxin.49193930012862132170209248319388427497533
The10254115012886155218
cellular12784115012871133172210281320382429
elements17414115012870109171280342412451505
of22824115012877124
the24414115012846116178
tissues2654411501284686140194265327381
also30704115012869108162232
take33384115012845108178240
an36134115012871140
active37884115012871132171209280342
part41654115012877140186224
in44254115012846116
the45764115012847116179
protection47904115012877124194233295357396435504575
of53994115012879126
the8514300012839110173
organism10594300012874121190253322362416525
against16174300012868138201240311365404
the20574300012843114177
infection.22694300012843114160222285323362432501537
The28464300012886156218
presence31004300012875123184237300370432494
of36294300012876123
any37874300012868138208
infection40284300012845116163225288326364435504
usually45684300012876130200262301340410
produces50114300012876123194264334397459513
leucocytosis.8514485012839102172234304366436473544599637692728
Bacteria161444850128107170231270333378417479
in21284485012853124
the22874485012852122185
tissues2507448501285291145200270332386
are29284485012877123186
surrounded31494485012867137184231300371440510573643
by38284485012883153
white402844850128102171211250312
cells43754485012875138177215270
or46814485012883130
phagocytes.48464485012883154215286355418488525588643678
They8514671012886155218288
prevent11734671012870117179249312382421
the16304671012837108169
spread18354671012854123171233294364
of22354671012870116
bacteria23864671012870133195233296343381444
and28654671012862131201
destroy31014671012870133186225272342413
them.35474671012839109173282314
If1025485601284793
the11544856012839110173
reaction13624856012848109171233271311381450
against18484856012863132195232303357397
invading22794856012840110180242312351420491
bacteria28084856012869132193232295342380443
is3285485601283994
insufficient,34144856012840109164234281328366429466529598638673
vaccines41224856012870133195257296365428483
may464048560128109169240
be49144856012870133
injected50824856012840111150212274312375444
subcutaneously8515041012855125195258327366428498561630700755793864
to17485041012852123
produce19065041012882129198269338401463
a24055041012874
more252650410128110177225287
active28485041012875138177215286348
resistance32315041012858120175213269307370439502564
of38305041012882129
the39945041012851121184
protective42135041012882129198237299361400438509572
mechanisms483250410128109169231301364434474528638690
of8515225012870117
the10035225012857127189
body.12285225012887157228298332
Vaccines159552250128118180242305344415477531
are21615225012880127189
employed23855225012880190258297368438499569
not29905225012887158196
only32225225012888158197267
to35235225012856127
contribute36855225012880150221260307345415485524586
to43065225012857127
the44675225012857127190
treatment46925225012857104167228267376436507546
of52745225012887135
a54445225012880
disease,8515411012870110164226289342405440
but13265411012870140178
to15405411012839108
establish16835411012863117155218287327365419490
an22085411012863132
active23755411012862125162202271334
artificial27445411012863109147186233272334373438476
immunity.32555411012838147255323394433473543577
5.8515787012670106
Give99157870126102140203265
the12915787012639117179
definition15055787012670132178217296334372412481560
(20995787012646
определение21815787012670149219282350412484547625703764
)29805787012647
of30625787012670117
“immunity”32495787012669109216325405482520559622691
Immunity12355967012847157265334405444483554
is1822596701283994
…195059670128141
.21955967012836
6.8516158012670106
Answer9916158012694172227321382436
the14636158012637116178
questions16766158012670148210265303342411490544
1.8516337012870106
What103163370128133201264303
causes13696337012863125195249312365
the17706337012839108171
infectious19766337012839108155218279317356426497551
diseases?25616337012870109163226288342405458520
2.8516522012870106
How103165220128101171273
may133965220128109169241
the16136522012839109172
infection18206522012839109156219281319358428497
result?23536522012847109164233271311373
3.8516708012870106
What103167080128133201264303
do13696708012871141
the15466708012837107169
pathogenic17516708012870132170240311380443512551614
microorganisms240067080128110146209255326395443512574645683737847899
produce?33356708012870116187258327390451513
4.8516893012870106
What103168930128133201264303
do13696893012871141
the15466893012837107169
body17516893012870139209279
cells20646893012863125164204259
produce23576893012870117187257327389452
to28446893012837108
meet298868930128109169231270
the32946893012839109171
infection?35006893012839109156218280319358427498560
5.8517077012870106
When103170770128133201264334
does14017077012870139202257
the16937077012838108170
recovery18987077012847109172241311373420490
occur?24217077012871133195266313374
6.8517263012870106
How103172630128101171273
is1338726301283994
an14687263012862131
artificial16347263012863110147187234272334372435473
immunity21437263012839147256324394434473544
produced?27207263012870117187258328391452522584
7.8517639012670106
Fill9917639012694133171211
in12377639012638116
the13887639012639117179
gaps16027639012670139210264
and19017639012671148217
tell21537639012639102140179
what23687639012694170240279
part26827639012670140194233
the29517639012637116178
cellular31647639012662123162202280318388443
elements36427639012663100163270334411450504
play41827639012670108178241
in44577639012639117
the46097639012639117180
protection48227639012670125195233296359396436506584