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प्रश्न
How does malaria spread?
उत्तर
Mode of transmission:
The malaria parasite life cycle involves two hosts. Plasmodium is transmitted from one person to another through an insect vector- female Anopheles mosquito.
When an infected female Anopheles sucks the human blood, it may transfer sporozoites to human circulation. Sporozoites reproduce asexually through the fission (schizogony) in the liver cells or erythrocytes.
The cells formed are now called merozoites. The cells formed within erythrocytes function as gametocytes (gamogony).
Besides, it forms gametocytes within erythrocytes (gamogony). Gametocytes if taken up by female Anopheles, fertilization occurs in its gut.
A diploid zygote is formed which transforms into an oocyst. Oocyst forms a large number of haploid sporozoites through meiosis (sporogony). Sporozoites migrate to salivary glands and are ready to infect the new human hosts.
Stages in the life cycle of Plasmodium in mosquito and human
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संबंधित प्रश्न
The protozoan that causes malaria is:
Mention whether the following statement is true (T) or false (F).
Malaria is caused by protozoan.
The vector that transmits the malarial pathogen is:
Name the infective stage of Plasmodium. Give any two symptoms of malaria.
What are the symptoms of malaria?
How does the transmission of the following disease take place?
Amoebiasis
Which one of the following diseases is a communicable?
Which is the causative agent of Amoebiasis?
Given below are certain diseases paired up with their modes of transmission.
Choose the pair that is incorrectly matched.
Malaria: Anopheles, Dengue: ______
