00334nam a2200133Ia 4500008004000000020001500040082001600055100001900071245003900090250000500129260002300134300000800157650003500165210210b1989   xxu||||| |||| 00| 0 eng d  a8185031312  a576.64 PURV  aPUROHIT (S S).  aViruses, bacteria and mycoplasmas.  a  aIndiabA B Pc1989  a168  aViruses Bacteria Mycoplasmas