Advertisements
Advertisements
प्रश्न
Why do you think it is not possible to produce vaccine against 'common cold'?
Advertisements
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
Study a part of the life cycle of malarial parasite given below. Answer the questions that follow:
(a) Mention the roles of ‘A’ in the life cycle of the malarial parasite.
(b) Name the event ‘C’ and the organ where this event occurs.
(c) Identify the organ ‘B’ and name the cells being released from it.
What are the various public health measures, which you would suggest as safeguard against infectious diseases?
Persons suffering from sickle cell anaemia are at an advantage in Malaria infected areas. Explain.
The sporozoite of the malarial parasite is present in _______.
Haemozoin is ____________.
Where do the following events in the life cycle of Plasmodium takes place?
a) Fertilization - _________
b) Development of gametocytes - __________
c) Release of sporozoites - ________
d) Schizogony - _________
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 |
A person is suffering from a high-grade fever. Which symptoms will help to identify if he/she is suffering from Typhoid, Pneumonia or Malaria?
Flemming's used ______ bacterium culture during the discovery of penicillin.
Some of the events occurring during the life cycle of Plasmodium are given below. Identify the CORRECT statement.
The disease chikungunya is transmitted by ______.
Many diseases can be diagnosed by observing the symptoms in the patient. Which group of symptoms are indicative of pneumonia?
Explain any three preventive measures to control microbial infections.
Ringworm is one of the most common infectious fungal disease in humans. Name any two genera of fungi which cause ringworm.
Select the pathogen mismatched with the symptoms of disease caused by it from the list given below:
Which particles are responsible for causing the greatest harm to human health?
Write the mode of transmission for the following diseases:
Filariasis
How does the transmission of the following disease take place?
Ascariasis
