♡ Login
Home
Previous Papers
★
MCQs
General Science
Everyday Science
when was the first use of vaccing ...
Que.
when was the first use of vaccing for diphtheria trtaunus
A.
in 1930
B.
in 1921
C.
in1920
D.
in1925
Right Answer is :
✓ A. in 1930
⚑ Report
Views 👍 :435
Share :
Copy ☍
✒ To discuss this topic
Comment
✕ Cancel
➤ Post Comment
❖ Related Questions
➣ Which of the following is a compound ...
➣ T B affected the most ...
➣ Can the vaccine cause the disease ...
➣ what is the age of polio ...
➣ Soap is formed from: ...
➣ Blood is sent to body tarts by ...
➣ An instrument used to measure humidity is- ...
➣ What I viewed through an electron microscope? ...
➣ Washing of clothes and other articles is ...
➣ Which one of the following is an ...
❖ Take a qick MCQ Test on
➤ Computer Awareness
➤ Inventions and Discoveries
➤ Everyday Science
➤ Scientific Instruments
➤ Various Sciences
➤ Miscellaneous
➤ Environment Science
➤ Research Institutions