Question

Which of the following is a disease caused by the helminth parasite?
A. Diphtheria
B. Filariasis
C. Malaria
D. Fluorosis

Answer 1

Filariasis is a parasitic disease spread by mosquitoes and black flies. These parasites are worm-like, slender, spherical creatures. When examined under a microscope, they seem white or translucent.
They create millions of larvae during the course of their lives. Females are about long, while males are roughly half that length.
During the early stages of filariasis, the following symptoms are common:
Fever/Chills/Headache.
In the early stages, between three and nine months following the bug bite, skin lesions might be seen.

Complete answer:
Option A: Diphtheria is a life-threatening infection caused by bacteria called Corynebacterium diphtheriae , which produce a toxin (poison). It is the toxin that has the potential to make people terribly sick. Diphtheria bacteria are transmitted from person to person through respiratory droplets, such as those produced by coughing or sneezing
So, option A is not correct.
Option B: The term 'helminth' is a broad phrase that means 'worm', implying that they are parasitic worms. Helminths live in both aquatic and terrestrial habitats, either as parasites or without a host. Intestinal nematodes, also known as soil-transmitted helminths (STH), schistosomes (schistosomiasis parasites), and filarial worms, which cause lymphatic filariasis (LF), are the most frequent.
So, option B is correct.
Option C: Malaria is a dangerous and sometimes fatal disease caused by a parasite that is spread by a mosquito species that feeds on humans. Malaria makes people unwell, causing high fevers, shivering chills, and flu-like symptoms. Humans are infected by four different types of malaria parasites: P. falciparum , Plasmodium ovale , Plasmodium vivax , Plasmodium malariae.
So, option C is incorrect.
Option D: Fluorosis is a dental disorder that alters the appearance of the teeth. Overexposure to fluoride during the first eight years of life causes it. The majority of permanent teeth are created during this time. Fluorosis-affected people's teeth may appear moderately stained after they come in.
So, option D is not correct.

Hence, Option B is the correct answer.

Note:
Filariasis is caused by a roundworm belonging to the family Filarioidea. However, this is a vector-borne disease, with mosquitoes and black flies serving as the principal vectors. When a mosquito bites an already sick person and then bites a healthy person, the virus spreads. This allows the parasite's larvae to enter and multiply in the bloodstream of a healthy host.
The lymphatic system is responsible for the whole life cycle of filarial worms, from larva to adult. The adult filarial worm begins to release larval versions known as microfilariae after it has reached maturity.
This parasite disease is classified according to where area of the body is infected:
Lymphatic filariasis: This type of filariasis affects the lymphatic system, as the name implies.
The worms infect the bottom layer of the skin and the white area of the eyes in subcutaneous filariasis.
Filariasis of the serous cavity of the abdomen: In this condition, the serous cavity of the abdomen is contaminated.