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प्रश्न
Why do you think it is not possible to produce vaccine against 'common cold'?
उत्तर
Vaccines target specific pathogens and elicit immunity. In case of common cold, more than 200 strains of viruses are responsible for causing the disease. Hence it is practically difficult to develop vaccine against it.
संबंधित प्रश्न
Persons suffering from sickle cell anaemia are at an advantage in Malaria infested areas. Explain .
Describe the events in the life cycle of Plasmodium which take place in the female Anopheles.
Exo-erythrocytic schizogony of Plasmodium takes place in ____________.
The sporozoites of Plasmodium vivax are formed from ________.
Write the symptoms of filariasis.
How is this disease transmitted?
| Diseases | Causative agent | Symptoms |
| Ascariasis | Ascaris | |
| Trichophyton | Appearance of dry, scaly lesions on various parts of the body | |
| Typhoid | High fever, weakness, headache, stomach pain and constipation. | |
| Pneumonia |
Pons varolii in human brain lies:
The active form of entamoeba histolytica feed upon:
Some of the events occurring during the life cycle of Plasmodium are given below. Identify the CORRECT statement.
Typhoid is transmitted through ______
The disease chikunguniya is transmitted by ______.
Many diseases can be diagnosed by observing the symptoms in the patient. Which group of symptoms are indicative of pneumonia?
A person with sickle cell anemia is ______.
Given below are the pairs of pathogens and the diseases caused by them. Which out of these is not a matching pair and why?
| (a) | Virus | common cold |
| (b) | Salmonella | typhoid |
| (c) | Microsporum | filariasis |
| (d) | Plasmodium | malaria |
If there are two pathogenic viruses, one with DNA and other with RNA, which would mutate faster? And Why?
What is Pulse Polio Programme of Government of India? What is OPV? Why is it that India is yet to eradicate Polio?
What measure would you take to prevent water-borne diseases?
