00253nam a2200097Ia 4500008004100000040001100041245002400052260005600076300001400132300000900146251112s9999||||xx |||||||||||||| ||und||  aCNCLSA 0aJournal of Virology  c1968bAmerican Society for MicrobiologyaWashington  aP. 1-1264  bV.86