00385nam a2200121Ia 4500008004100000020002200041100001900063245008400082260004300166300002100209650001600230650001700246201002s9999    xx            000 0 und d  a978-043-118-598-9  aBallard, Carol  cCarol BallardaFrom cowpox to antibiotics:bdiscovering vaccines and medicines/  aOxford:bHarcourt Education Ltd.c2006  a64 pagesc22 cm.  aAntibiotics  aVaccinations