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FROMDistribution authorized to U.S. Gov't.agencies and their contractors;Administrative/Operational Use; JUN 1968.Other requests shall be referred toDepartment of The Army, Fort Detrick,Attn: Technical Release Branch/TID,Frederick, MD 21701.

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Smufd, D/A ltr, 17 Feb 1972

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TRANSLATION NO. 61C

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Razval of SZJns s rgic ' !"-a m~& e clar influenca o-, z*.tbodyaynthesis. Alz -•._- • t.r-'Ii "-l cl n'=r. -. zni. Co--.,_ 4. •-

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Ic o .3i7• triclz t cfefct of t!rjmocto,7 of chickc.• on ,tibody

for-ati=n it. mestie-tcei &x:-inZ nt-pic =iVad cIhicveen po:if t;4~

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'Zia Vhoe we~re ;ae:Toz~od vithi "MZ EMZ chcV Svoro o"-otllc•d oý 'I'7 -=nd pox firc. coc: and ware hatchc in t•t in-stitute. For Ut =7 zxial 60 chick• waro uzod in croio o .J. Fortpax, trial & c.4c=s •, ero grouped per 16 an=m--". Half of the chicc= u-orotkr.-jctomi~cd at 3-6 d.V;, t!;z -rs vae c~ut-ols. All ch:!L~s we-e !a pt

in incubetrz and fed peliots of food.

Ornat : , =stZ-ctic af ta- 'reyan ý •163) with z~u--.Ll diluted1:6 vith =J=; da:o of 0,005 -_ per grm bo. might ZlX. -Nedian cutdorcai fron atlas to cheebt, tho thW= kmots ware rzovod •_i=h a bentforceps. -outearo wi'-a 4 t-itc1bas (not xo-oved).

e -1 insas Vr.ms: xi& r 13 straim of lID Cntor vnccinoC3n• c•) ,az wued. dose for i00 =Jms -; disolvzd in 1.0 =l

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&ro': .cd obtainad. b.*y left-Sid-3 heart, P-me :.. L' ckroel vaccL=n--,ion and t'= weeks post infection. Seram: wac. zred at -20°Cand used zz: 1) he=.&=Je! nation (SI) nhxibition diluted !.5 - 1:20,340,

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