00390nam a2200145 a 450000500170000000800410001702000180005804100080007608200110008410000170009524500420011225000120015426400530016630000250021920260717092739.0260717s2013    ii            000 0 eng d  a9781449648923  aeng04a616.911 aShors, Teri.10aUnderstanding viruses /cShors, Teri.  a2nd ed. 1aBurlington :bJones & Bartlett Learning,cc2013.  axxv, 704 p. ; 28 cm.