The vaccine for polio was first prepared by
A. Paul Ehrlich
B. Jones Salk
C. Louis Pasteur
D. Joseph Lister
Answer: Option B
A. Paul Ehrlich
B. Jones Salk
C. Louis Pasteur
D. Joseph Lister
Answer: Option B
Which one of the following is useful in the treatment of scurvy disease?
A. Mango
B. Papaya
C. Aonia
D. Ber
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