types of disease and and it's vaccine important for all exams

Hello everyone
in this video I explained about
#bcg
#tuberculosis
#poliomyelitis
#polio
#haemophilusinfluenzaetypeB
#hepatitisb
#Diptheriatetanuspertussis
#dpt-hib
#important
#allcompititiveexams
#class10 #class11 #class12 #class9



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#kashifatutorial