Practice Class 8 MCQs From Textbooks
Diptheria MCQ App Download | Inventions e-Book PDF
Inventions Practice Test: MCQs for Exam Prep
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The MCQ: In which one of the following year, diphtheria vaccine was invented; "Diptheria" App Download [Free] with answers: 1924, 1913, 1976, and 1903 for online elementary school classes. Solve Inventions and Inventors Quiz Questions, download Apple Book (Free Chapter) for school certificate.
In which one of the following year, diphtheria vaccine was invented?
The first successful vaccine for diphtheria was developed by
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