How does the transmission of each of the following diseases take place?
(a) Amoebiasis
(b) Malaria
(c) Ascariasis
(d) Pneumonia
How does the transmission of each of the following diseases take place?
(a) Amoebiasis
(b) Malaria
(c) Ascariasis
(d) Pneumonia
Solution and Explanation
| Disease | Causative organism | Mode of transmission | |
| a | Amoebiasis | Entamoeba histolytica | It is a vector-borne disease that spreads by the means of contaminated food and water. The vector involved in the transmission of this disease is the housefly. |
| b | Malaria | Plasmodium sp. | It is a vector-borne disease that spreads by the biting of the female Anopheles mosquito. |
| c | Ascariasis | Ascaris lumbricoides | It spreads via contaminated food and water |
| d | . Pneumonia | Streptococcus pneumoniae | It spreads by the sputum of an infected person |
Top Questions on human health and disease
- Explain how the immunity of a person is affected if there is atrophy (degeneration) of the thymus gland at an early stage of life.
- CBSE CLASS XII - 2025
- Biology
- human health and disease
- A person is suffering from high grade fever. Which symptoms will help to identify if he/she is suffering from Typhoid, Pneumonia or Malaria?
- CBSE CLASS XII - 2025
- Biology
- human health and disease
Study the items of columns I and II where drugs and their effects are given and match them correctly.
Choose the correct answer from the options given below:- CBSE CLASS XII - 2025
- Biology
- human health and disease
- A person is suffering from high grade fever. Which symptoms will help to identify if he/she is suffering from Typhoid, Pneumonia or Malaria?
- CBSE CLASS XII - 2025
- Biology
- human health and disease
- Student to attempt either option (A) or (B):
(A) How does a human body respond when vaccine is introduced into it? It is said that vaccinations are a must for a healthy society. Justify.
OR
(B) Humans have innate immunity for protection against pathogens that may enter the gut along with food. What are the two barriers in our body that protect it from such pathogens?- CBSE CLASS XII - 2025
- Biology
- human health and disease
Questions Asked in CBSE CLASS XII exam
- ‘But the game he is watching so intently is out of his reach.’ What are the factors that have made their game inaccessible to Saheb? (Lost Spring)
- CBSE CLASS XII - 2025
- Literature
- A charge \( -6 \mu C \) is placed at the center B of a semicircle of radius 5 cm, as shown in the figure. An equal and opposite charge is placed at point D at a distance of 10 cm from B. A charge \( +5 \mu C \) is moved from point ‘C’ to point ‘A’ along the circumference. Calculate the work done on the charge.
- CBSE CLASS XII - 2025
- Electrostatics
Which of the following is a better data story? Give reasons.
- CBSE CLASS XII - 2025
- data storytelling
How do good stories emerge?
- CBSE CLASS XII - 2025
- data storytelling
Match the following:
- CBSE CLASS XII - 2025
- data storytelling
Notes on human health and disease
Concepts Used:
Common Diseases in Human Beings
Any adverse variation from an organism's normal structural or functional condition is usually associated with specific signs and symptoms and distinct from physical injury.
- Acute Disease
A few diseases appear out of nowhere and persist only a few days. Acute diseases, such as the common cold, are examples of them. Acute diseases frequently become chronic if they are not treated.
Acute diseases include strep throat, fractured bones, appendicitis, influenza, pneumonia, and others.
- Symptoms and Treatments
Acute diseases develop quickly and are accompanied by unique symptoms that necessitate immediate or short-term treatment and improve once treated. Acute illnesses, such as the common cold, can sometimes go away on their own.
- Chronic Diseases
Chronic diseases are illnesses that develop over time and endure for a long time or even a lifetime. Chronic disease is defined as a disease that lasts more than three years. The symptoms are relatively modest at first.