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unusual- persistencqremat-kabb

insightande~f~ao~dina~y uccucacy or
observakxx,Oswc&TJ.Avery has de/
votedthegreafet- paz~ofhiscientific
awec totflestLldy offfhepneumococcus.
   imated byan unsuq3assed infaL+
IectuaL cut-iosityandadesiretoconcper
one of he most dead&y enemies OF
man, he undertook to elucidafk in Ilo+
catsequence the biologicaLactivifieQhc3
immuno~ogicukha~acfet5stic.s and&e
pathogenic p~op~tzties ofthepneunw~
coccus.Inttrishesofa~succ~~~~
tidayifisf&~ti say-thclfmotle is known
aboutfhisotlganism t?tanaboutan~
     c hut-nun parasite. ~m~~zmmczxm"s,
  t7e this u1Li-t: wot~k% be auniqw
a~ompL;shrne~~,~u~qui~e ea$yint?w
course ofhisinvesfigations he became
interesfedinseurching foe achemicaC
expllanafion for&e type specifici-ty of
pneumococci.Jk aconsequence,hedis--
coveredandidentified -the capsu~arpo~y~
saccharides artddewronstcatec%their
   deteenzining this specificify.zza
     fiezsmore succeededindl~ow~
    0ntheitnmunoLogical cekrtiow-
ships of&eintraceLLCfatz constituenCs


     ,
sisinchenzicaMecrns of&e antiaekii

constitution of&e wh&neumo&&us.

roe the antigenic anuLysis oJ-- 0Cher

micro-organislns bothb himseCf and
b others who havefoLowec% inkis-
i?        Y
OotsceDs. ,zz?iYE??mmmmomm

  ong 1-/r. Avery-s many bciLLiant
   cibutions to scientific knowkdge
none has been mote outstctncfLncp
dun his studies ontheanticlenic con&

heis one of&f?x~nders offfkkcience
ofimmunochemistl-y.,?3ecau seoffhem.
oue.co~npt-ehension ofth- co~dex
peobLems of infkctious diseus~ has