Health Library

Communicable (infectious) diseases are health conditions caused by bacteria, viruses, fungi, or parasites—spreadable from one person to another, directly or indirectly. These diseases may be mild but can turn life-threatening without proper diagnosis or care.

Have you ever noticed your legs or feet swelling after a long day of standing, sitting, or even without any clear reason? While mild swelling may be harmless, persistent or sudden swelling in legs and feet can sometimes point to an underlying health problem.

Fever is the body’s natural defense mechanism against infections. But when fever comes back again and again, it becomes a matter of concern. Frequent fever, also known as recurrent or persistent fever, may be a sign of an underlying health issue that needs attention.

Clean water is the foundation of good health. Yet, millions of people across the world still suffer from illnesses caused by contaminated water. These illnesses, known as waterborne diseases, can affect anyone, especially during the monsoon season when water contamination is common.

Chickenpox, also known as Varicella, is one of the most common viral infections worldwide. While it is usually mild in children, it can sometimes become serious in adults and pregnant women.

Most of us have felt lightheaded or unsteady at some point — maybe after standing up too quickly, being dehydrated, or due to motion sickness. This is called dizziness. But when you feel like the room is spinning or you are rotating even when standing still, that’s vertigo.