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Widespread resistance of malarial parasite to drugs like chloroquine has prompted attempts to develop a malarial vaccine to combat malaria. Why is it difficult to develop an effective malaria vaccine ?
  • a)
    Malaria is caused by several species of Plasmodium
  • b)
    Man does not develop immunity to malaria during natural infection
  • c)
    Vaccines can be developed only against bacteria
  • d)
    Man is only an intermediate host and not the definitive host.
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Widespread resistance of malarial parasite to drugs like chloroquine h...
It is difficult to develop an effective malaria vaccine because repeated natural infection does not produce detectable resistance to the exo-erythrocytic cycle of malaria in man.
  • Malaria is typically transmitted through the bite of an infected Anopheles mosquito.
  • Infected mosquitoes carry the Plasmodium parasite.
  • When this mosquito bites, the parasite is released into the bloodstream.
  • Different species of Plasmodium (P. vivax, P. malaria, and P. falciparum) are responsible for different types of malaria.
  • Of these, malignant malaria caused by Plasmodium falciparum is the most serious one and can even be fatal.
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Widespread resistance of malarial parasite to drugs like chloroquine has prompted attempts to develop a malarial vaccine to combat malaria. Why is it difficult to develop an effective malaria vaccine ?a)Malaria is caused by several species of Plasmodiumb)Man does not develop immunity to malaria during natural infectionc)Vaccines can be developed only against bacteriad)Man is only an intermediate host and not the definitive host.Correct answer is option 'B'. Can you explain this answer?
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Widespread resistance of malarial parasite to drugs like chloroquine has prompted attempts to develop a malarial vaccine to combat malaria. Why is it difficult to develop an effective malaria vaccine ?a)Malaria is caused by several species of Plasmodiumb)Man does not develop immunity to malaria during natural infectionc)Vaccines can be developed only against bacteriad)Man is only an intermediate host and not the definitive host.Correct answer is option 'B'. Can you explain this answer? for SSC MTS / SSC GD 2025 is part of SSC MTS / SSC GD preparation. The Question and answers have been prepared according to the SSC MTS / SSC GD exam syllabus. Information about Widespread resistance of malarial parasite to drugs like chloroquine has prompted attempts to develop a malarial vaccine to combat malaria. Why is it difficult to develop an effective malaria vaccine ?a)Malaria is caused by several species of Plasmodiumb)Man does not develop immunity to malaria during natural infectionc)Vaccines can be developed only against bacteriad)Man is only an intermediate host and not the definitive host.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for SSC MTS / SSC GD 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Widespread resistance of malarial parasite to drugs like chloroquine has prompted attempts to develop a malarial vaccine to combat malaria. Why is it difficult to develop an effective malaria vaccine ?a)Malaria is caused by several species of Plasmodiumb)Man does not develop immunity to malaria during natural infectionc)Vaccines can be developed only against bacteriad)Man is only an intermediate host and not the definitive host.Correct answer is option 'B'. Can you explain this answer?.
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