SimilarityRank
vaccination 0.806 13071
cowpox 0.798 85609
rubella 0.770 36198
virus 0.769 3744
chlamydia 0.763 41650
tetanus 0.758 19763
immunization 0.756 37647
diphtheria 0.753 24994
azt 0.742 28257
immunise 0.741 26499
malaria 0.739 12850
penicillin 0.737 15405
hepatitis 0.736 7631
sulphonamide 0.735 43862
irradiation 0.732 17771
antibiotic 0.731 7160
measles 0.731 15295
injectable 0.730 50700
antitoxin 0.730 90876
infection 0.730 2615
tuberculosis 0.729 11298
hiv 0.722 4107
zidovudine 0.719 36127
polio 0.717 19165
immunisation 0.716 21651