● Some of the human diseases are caused by `color{violet}"protozoans"` too.

● `color{brown}"𝘗𝘭𝘢𝘴𝘮𝘰𝘥𝘪𝘶𝘮"`, a tiny `color{violet}"protozoan"` is responsible for this disease.

● Different species of `color{violet}"𝘗𝘭𝘢𝘴𝘮𝘰𝘥𝘪𝘶𝘮"` (`color{brown}"𝘗. 𝘷𝘪𝘷𝘢𝘹, 𝘗. 𝘮𝘢𝘭𝘢𝘳𝘪𝘢 and P. 𝘧𝘢𝘭𝘤𝘪𝘱𝘢𝘳𝘶𝘮"`) are responsible for different types of malaria.

● Of these, malignant malaria caused by `color{violet}"𝘗𝘭𝘢𝘴𝘮𝘰𝘥𝘪𝘶𝘮 𝘧𝘢𝘭𝘤𝘪𝘱𝘢𝘳𝘶𝘮"` is the most serious one and can even be fatal.

● `color{brown}"𝘗𝘭𝘢𝘴𝘮𝘰𝘥𝘪𝘶𝘮"` enters the human body as `color{violet}"sporozoite"`s (infectious form) through the bite of infected `color{brown"female 𝘈𝘯𝘰𝘱𝘩𝘦𝘭𝘦𝘴 mosquito"`.

● The parasites initially multiply within the `color{violet}"liver cells"` and then attack the `color{violet}"red blood cells"` (RBCs) resulting in their rupture.

● The `color{violet}"rupture of RBCs"` is associated with release of a toxic substance, `color{violet}"haemozoin"`, which is responsible for the `color{violet}"chill and high fever"` recurring every `color{violet}"three to four days"`.

● When a female 𝘈𝘯𝘰𝘱𝘩𝘦𝘭𝘦𝘴 mosquito bites an `color{violet}"infected person"`, these parasites enter the `color{violet}"mosquito’s body"` and undergo `color{violet}"further development"`.

● The `color{violet}"parasites multiply"` within them to form `color{violet}"sporozoites"` that are stored in their `color{violet}"salivary glands"`.

● When these `color{violet}"mosquitoes bite"` a human, the `color{violet}"sporozoites are introduced"` into his/ her body, thereby initiating the events mentioned above.

● It is interesting to note that the malarial parasite requires `color{violet}"two hosts"` – `color{violet}"human and mosquitoes"` – to complete its life cycle.

● The `color{brown}"female 𝘈𝘯𝘰𝘱𝘩𝘦𝘭𝘦𝘴"` mosquito is the `color{violet}"vector"` (transmitting agent) too.

● `color{brown}"𝘌𝘯𝘵𝘢𝘮𝘰𝘦𝘣𝘢 𝘩𝘪𝘴𝘵𝘰𝘭𝘺𝘵𝘪𝘤𝘢"` is a `color{violet}"protozoan"` parasite in the `color{violet}"large intestine"` of human which causes `color{brown}"amoebiasis"` (`color{brown}"amoebic dysentery"`).

● Symptoms of this disease include `color{violet}"constipation"`, `color{violet}"abdominal pain"` and `color{violet}"cramps"`, `color{violet}"stools with excess"` `color{violet}"mucous"` and `color{violet}"blood clots"`.

● `color{violet}"Houseflies"` act as `color{violet}"mechanical carriers"` and serve to transmit the `color{violet}"parasite from faeces"` of infected person to food and food products, thereby contaminating them.

● `color{violet}"Drinking water"` and `color{violet}"food"` contaminated by the `color{violet}"faecal matter"` are the main source of infection.

● `color{brown}"𝘈𝘴𝘤𝘢𝘳𝘪𝘴"`, the common round worm and `color{brown}"𝘞𝘶𝘤𝘩𝘦𝘳𝘦𝘳𝘪𝘢"`, the filarial worm, are some of the `color{violet}"helminths"` which are known to be `color{violet}"pathogenic"` to man.

● `color{brown}"𝘈𝘴𝘤𝘢𝘳𝘪𝘴"`, an intestinal parasite causes `color{brown}"ascariasis"`.

● Symptoms of these disease include `color{Violet}"internal bleeding"`, `color{Violet}"muscular pain"`, `color{Violet}"fever"`, `color{Violet}"anemia"` and `color{Violet}"blockage"` of the intestinal passage.

● The `color{Violet}"eggs of the parasite"` are excreted along with the `color{Violet}"faeces of infected"` persons which `color{Violet}"contaminate"` soil, water, plants, etc.

● A healthy person acquires this infection through `color{Violet}"contaminated water"`, `color{Violet}"vegetables"`, `color{Violet}"fruits"`, etc.