119
Introduction1205601012655133180242311390468530577615684763
Infectious1205839012847117164227289327365436506561
diseases1800839012886124178241303357420474
are2309839012877124185
any2529839012878148219
diseases2781839012885124179242303357420474
caused3290839012878139209263326395
by3721839012884154
pathogenic3909839012885148187256327397459529568630
microorganisms,45898390128109146209255326396443513576645683738848900936
such8511080012855125188257
as11441080012878132
bacteria,13111080012887150212250313360397460495
viruses,18411080012887125172241296359413448
fungi,23241080012863133203273312348
or27071080012886133
parasites.28751080012886148195257311350389452506542
These345210800128102171234288350
diseases38381080012885124178241304357420473
are43471080012879125188
characterized45701080012879149212259321382421484530569631693763
by53691080012885155
their8511321012839110172210257
ability11421321012888157196235274312383
to15581321012864135
not17271321012895165203
only19661321012894163203273
cause22731321012887149219273336
dangerous26431321012895157227297359406475545600
complications32811321012887157267335374414475538577615685755809
but41261321012894163203
also43631321012887125180250
spread46491321012878147195257319388
rapidly,50731321012871133203241311350421454
infecting8511563012839110157218280319358428498
a13851563012862
large14821563012837100147216279
number17961563012870139249318381428
of22571563012870118
people.24101563012870132202271311373409
Although120518050128101140179249320389459529
they17691805012847117179250
are20521805012870117179
classified22671805012870108170224280318365403466535
as28371805012871124
a29971805012870
single31011805012863101171241280343
group,34791805012877123193264334369
they38831805012846115178248
can41651805012870132203
manifest441118050128110169240279326388442482
differently49271805012879117164211272319381451490528599
depending8512046012870133202265335405443514583
on147020460128114184
the16892046012882153215
type19402046012881151219282
of225720460128115162
pathogen245420460128114177216285355426487558
and304720460128107176245
require33282046012890153222293331378441
different380420460128113152199246307354416486525
treatment43652046012881128190252291401461531571
methods.497120460128153213252323394463518554
However,85122870128101171273335405468514550
they14362287012897166229299
share176922870128113183246293354
the21582287012898168231
common242422870128121190300410478548
trait30082287012897144207246284
of332822870128128176
being353922870128128191229299369
highly394422870128127167236306345416
dependent439322870128130193262324395464527596635
on506322870128129199
the52982287012896167228
individual's8512529012839110179219288327397467530568593648
immune15352529012837147255323393456
system.20262529012855125178217280389422
Infectious12052771012847117164227289327365436506561
diseases18002771012882120176237300354416471
are23062771012873120181
united25222771012882152191230292361
by29192771012882152
their31052771012850120183222269
ability34082771012874144182221259299369
to38112771012850121
be39672771012881144
transmitted4146277101284996159228282391428467507570640
from48202771012858104175284
person51372771012882145191246316386
to8513012012839110
person99630120128121184231284355425
and145630120128115184254
to17453012012892161
spread194230120128107176224286348417
rapidly23953012012899161231270340378449
in28773012012891162
a307530120128114
community.322330120128115185295403471541581620691724
At398230120128154192
the42103012012891162223
same446930120128107169279338
time,48433012012891130240300335
their52133012012891162225264311
manifestations85132540128109170241280327390443483545583622692762816
and170332540128114184254
impact19933254012891201268331394433
on246132540128123193
the26903254012890161223
body294932540128121192265334
can331832540128115177247
be360132540128122185
very382132540128123185232302
different:415732540128122162209256317364426496535574
from47673254012899146215325
barely512432540128123186232295334404
noticeable8513495012870141179219281343405474514576
to14623495012839108
life-threatening.1606349501283977124186234272343389451512551614683723792862897