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Doctors Medicines MCQs Q&A

Widespread resistance of the malarial parasites 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?

Widespread resistance of the malarial parasites 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? Correct Answer Man does not develop immunity to malaria during natural infection

The correct answer is Man does not develop immunity to malaria during natural infection.

 Key Points

  • 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.

 Important Points

  • 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.

 Additional Information

  • World Malaria Day is celebrated on April 25 by the World Health Organisation and several other international organizations.

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Related Questions

Statement : Some strains of mosquito have become resistant to chloroquine - the widely used medicine for malaria patients.

Courses of Action :
I. Selling of chloroquine should be stopped.
II. Researchers should develop a new medicine for patients affected by such mosquitoes.
III. All the patients suffering from malaria should be checked for identification of causal mosquito.
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In a group, 29 people like to watch movies, 35 people like to watch web series and 34 people like to watch YouTube videos. Also, 13 people like to watch only movies, 21 people like to watch only web series and 15 people like to watch only YouTube videos. 4 of them like to watch only movies and web series. 3 of them like to watch movies, web series and YouTube videos as well. How many people like to watch both movies and YouTube videos?
Fact 1: All dogs like to run.
Fact 2: Some dogs like to swim.
Fact 3: Some dogs look like their masters.

If the first three statements are facts, which of the following statements must also be a fact?
I: All dogs who like to swim look like their masters.
II: Dogs who like to swim also like to run.
III: Dogs who like to run do not look like their masters.
1. A Judicial Magistrate First Class can authorize the detention in custody, of a person accused of an offence triable by Special Court established under The Narcotic Drugs and Psychotropic Substances Act, 1985, for a period not exceeding fifteen years.
2. The Special Court established under The Narcotic Drugs and Psychotropic Substances Act, 1985, cannot exercise the power to authorize the detention of accused in custody, as enunciated under Section 167 of Code of Criminal Procedure.
3. The definition of 'use' under Section 2(xxviii-a) of The Narcotic Drugs and Psychotropic Substances Act, 1985, excludes personal consumption of narcotic drugs and psychotropic substances.
4. The High Court, by special order, may constitute as many Special Courts under The Narcotic Drugs and Psychotropic Substances Act, 1985, as necessary.
Which of the above statements are correct?
The following questions are generally used in Social Science classes. Choose those which provide a greater scope for developing of critical thinking? A. Why is the Salt March considered a symbol of resistance against colonialism? B. The Salt March was an effective symbol of resistance against colonialism. Do you agree with the statement? Justify your answer. C. Discuss the Salt March to make clear why it was an effective symbol of resistance against colonialism. D. Why did political parties differ sharply over the question of separate electorate? Choose the correct option.
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There are 90 people in a company, they all like at least one of the drinks namely tea, coffee, and milk. Further it is known that, 20 people like all the three drinks. 30 people like both coffee and milk, 25 people like both tea and milk and 35 people like both tea and coffee. A total of 60 people like tea and a total of 40 people like milk. What is the number of people who like only coffee?