Which one of the following vaccines was first discovered
A. Small pox
B. BCG
C. Cholera
D. Typhoid
Correct Answer: Small pox
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A. Small pox
B. BCG
C. Cholera
D. Typhoid
A. 4
B. 3
C. 1
D. 2
A. 30°C
B. 40°C
C. 50°C
D. 60°C
A. Heart
B. Liver
C. Lungs
D. Brain
A. Weakened pathogen
B. Live pathogen
C. Dead pathogen
D. All of these
A. Troposphere
B. Stratosphere
C. Mesosphere
D. Thermosphere
A. Transpiration
B. Condensation
C. Evaporation
D. Chlorination