The common cold is characterized by nasal congestion and discharge, sore throat, hoarseness, cough, headache tiredness, etc. which usually lasts for 3-7 days. Infection may occur through
1. Contaminated food and water
2. Hypodermic needles
3. Droplet infection resulting from cough and sneezes
4. Bite of infected mosquito
Common cold is not cured by antibiotics because it is
1. caused by a Gram-negaive bacterium
2. not an infectious disease
3. viral disease
4. caused by a Gram-positive bacterium
Which one of the following organisms is scientifically correctly named, correctly printed according to the International Rules of Nomenclature, and correctly described?
1. | Plasmodium falciparum – a protozoan pathogen causing the most serious type of malaria |
2. | Felis tigris – The Indian tiger, well protected in Gir forests. |
3. | E.Coli – Full name Entamoeba coli, a commonly occurring bacterium in the human intestine |
4. | Musca domestica – The common house lizard, a reptile |
The means of spread of which two infectious diseases is common?
1. Malaria and Filariasis
2. Pneumonia and the common cold
3. Typhoid and Ringworms
4. Pneumonia and Malaria
Which of the following is not an intestinal parasite?
1. Entamoeba histolytica
2. Ascaris
3. Salmonella typhi
4. Plasmodium
The most infectious human ailment caused by a virus is
1. Common cold
2. AIDS
3. Pneumonia
4. Lung cancer
Common cold differs from pneumonia in, that:
1. | Pneumonia is a communicable disease, whereas common cold is a nutritional deficiency disease |
2. | Pneumonia can be prevented by a live attenuated bacterial vaccine, whereas the common cold has no effective vaccine |
3. | Common cold is caused by a virus, while Pneumonia is caused by a bacterium. |
4. | Pneumonia pathogen infects alveoli whereas common cold affects the nose and the respiratory passage but not the lungs |
In malaria; the female Anopheles mosquito is
1. Host
2. Vector
3. Both
4. Neither host nor vector completely
Which of the following statements is incorrect with respect to malaria?
1 Malaria is a disease caused by a protozoan
2 Malignant malaria is caused by Plasmodium falciparum
3 Parasites enter the mosquito's body and multiply to form sporozoites that are stored in stomach of mosquito
4 Malaria parasites initially multiply within the liver cells in humans
Release of which of the following is responsible for recurrent malarial symptoms?
1 Sporozoites
2 Haemozoin
3 Gametes in blood
4 Hemoglobin