Explanation

• SARS-CoV-2: Coronavirus that causes COVID-19.
• First identified: Late 2019.
• Transmission: Mainly through respiratory particles.
• COVID-19: Stands for Coronavirus Disease 2019.

Explanation

• Scurvy Cause: Vitamin C (ascorbic acid) deficiency. 
• Symptoms: Fatigue, weak and sore limbs, bleeding gums, easy bruising, delayed wound healing, and anemia. 

Additional information:

• Rickets: Caused by a deficiency in Vitamin D.
• Beriberi: Caused by a deficiency in Vitamin B1 (Thiamine).
• Night Blindness: Caused by a deficiency in Vitamin A.

Last verified on 09-10-2026

Explanation

• Tuberculosis (TB) is caused by a bacterium called Mycobacterium tuberculosis.
• TB bacteria usually attack the lungs, but they can also affect other parts of the body.
• TB may affect the kidneys, spine, and brain.
• Tuberculosis (تپِ دق) is a serious infectious disease that commonly affects the lungs.

Last verified on 06-10-2026

Explanation

• Vitamin C deficiency causes scurvy.
• It can cause bleeding/loose gums, easy bruising, and poor wound healing.
• Other signs include rough skin, corkscrew hair, and red spots around hair follicles.
• Rickets is mainly caused by Vitamin D deficiency.

Last verified on 13-09-2026

Explanation

• Iodine deficiency causes goiter, an enlargement of the thyroid gland.
• Iodine is essential for the production of thyroid hormones.
• Severe iodine deficiency during pregnancy or early childhood can impair brain development.

Last verified on 07-09-2026