Tag: zoology

Leprosy is an infectious disease. It affects the peripheral nerves, skin, upper respiratory tract, eyes, and nasal mucosa. It is caused by a bacillus bacterium known as Mycobacterium leprae. It can be considered as a mild infection because it can be easily cured by the drugs like dapsone. 

Deficiency diseases are the diseases that are caused due to deficiency of vitamin or minerals in the food and is not a communicable disease as it cannot be transferred for person to person by touch or any fluid as it is not caused by any bacteria or virus.

A goiter is an abnormal swelling of the thyroid gland that causes a lump to form in the neck. There can be many possible causes including an under or overactive thyroid gland due to iodine deficiency
So, the correct answer is 'Thyroid gland'

Beriberi is a deficiency disorder of thiamine (vitamin B$ _{1}$) that affects many systems of the body, including the muscles, heart, nerves, and digestive system. Rickets is defective mineralization or calcification of bones due to deficiency or impaired metabolism of vitamin D. Scurvy is a disease resulting from a deficiency of vitamin C. Scurvy presents initially with fatigue, followed by formation of spots on the skin, spongy gums, and bleeding from the mucous membranes. Thus, the correct answer is option B.

A chronic condition is a severe disturbance in the metabolism of the body which is long lasting. The term chronic is usually applied when the course of the disease lasts for more than three months. Such chronic disease cannot be cured easily.

Chronic disease is a long-lasting condition that can be controlled but not cured. The term chronic is usually applied when the course of the disease lasts for more than three months. Common chronic diseases include arthritis, asthma, cancer, diabetes and viral diseases such as hepatitis C and HIV/AIDS.

Droplet infection is the infection which is transmitted by the oral discharge during coughing and sneezing. It is a direct method of infection where the pathogens are easily transmitted from the carrier to the healthy host.

Asthma is a respiratory condition marked by attacks of spasm in the bronchi of the lungs, causing difficulty in breathing. It is usually connected to the allergic reaction or other forms of hypersensitivity. Hay fever is the common name for allergic rhinitis. It is an allergic reaction to allergens, or triggers, breathed in through the nose. When one of these allergens is breathed in, there is an immune response in the lining of the nose. This causes the nasal passages to become swollen and inflamed. Asthma and hayfever are closely linked, and approximately 80% of people with asthma also suffer from hayfever.

Tuberculosis (TB) is an acute or chronic infection caused by the tubercle bacillus Mycobacterium tuberculosis. Viral fever is an acute viral infection. The most common viral fever is the seasonal flu. The virus is spread when an infected person coughs or sneezes. The common cold is a viral infectious disease of the upper respiratory tract which primarily affects the nose. It usually resolves in seven to ten days, with some symptoms lasting up to three weeks. Examples of chronic illnesses are cancer, AIDS, kidney disease and diabetes.