MHT CET 202622 AprilMorning Shift
- Exam
- MHT CET
- Year
- 2026
- Date
- 22 April
- Shift
- Morning Shift
- Subject
- Biology
- Chapter
- Human Health and Diseases
MHT CET 2026 · 22 April · Morning Shift · Biology · Human Health and Diseases
Which of the following statements are correct about vaccines? (A)....
Which of the following statements are correct about vaccines?
(A). Vaccines have eliminated smallpox and polio.
(B). The flu vaccine produced by Bacillus subtilis is an oral vaccine.
(C). The oral vaccines are expensive and difficult to store.
(D). The immunogenic proteins of certain pathogens are found to be active when taken orally.
Choose the correct answer from the options given below:
(A). Vaccines have eliminated smallpox and polio.
(B). The flu vaccine produced by Bacillus subtilis is an oral vaccine.
(C). The oral vaccines are expensive and difficult to store.
(D). The immunogenic proteins of certain pathogens are found to be active when taken orally.
Choose the correct answer from the options given below:
Options
- A(A), (B) and (D) only.
- B(A), (B) and (C) only.
- C(A), (B), (C) and (D).
- D(B), (C) and (D) only.
Correct answer
A. (A), (B) and (D) only.
Step-by-step solution
Statement (A) is correct because vaccines have successfully eradicated smallpox globally and eliminated polio from many countries.
Statement (B) is correct as genetically engineered Bacillus subtilis spores are used to produce oral vaccines, such as the flu vaccine.
Statement (C) is incorrect because oral vaccines, particularly those based on bacterial spores, are highly stable, do not require a strict cold chain, and are \cos t-effective and easy to store.
Statement (D) is correct because for an oral vaccine to be effective, the immunogenic proteins of the pathogens must remain active and survive the harsh acidic environment of the stomach when taken orally.
Therefore, statements (A), (B), and (D) are correct.
Answer: (A), (B) and (D) only.
Statement (B) is correct as genetically engineered Bacillus subtilis spores are used to produce oral vaccines, such as the flu vaccine.
Statement (C) is incorrect because oral vaccines, particularly those based on bacterial spores, are highly stable, do not require a strict cold chain, and are \cos t-effective and easy to store.
Statement (D) is correct because for an oral vaccine to be effective, the immunogenic proteins of the pathogens must remain active and survive the harsh acidic environment of the stomach when taken orally.
Therefore, statements (A), (B), and (D) are correct.
Answer: (A), (B) and (D) only.