An infection is the invasion of tissues by pathogens, their multiplication, and the reaction of host tissues to the infectious agent and the toxins they produce. [1] An infectious disease, also known as a …

Apr 8, 2025 · Symptoms of infectious diseases vary depending on the cause of the infection. But they often include fever and tiredness. Rest and home remedies may clear up mild infections. But other …

Sep 19, 2025 · Infection refers to an invasion of the body by harmful microorganisms or parasites. The severity can range from mild to fatal. Treatment depends on the type of infection.

Jun 12, 2025 · Infection control prevents or stops the spread of infections in healthcare settings. Healthcare workers can reduce the risk of healthcare-associated infections and protect themselves, …

Infectious diseases are illnesses caused by harmful germs (pathogens) that get into your body. The most common causes are viruses, bacteria, fungi and parasites.

Blood-Borne Pathogens see Infection Control Body Lice Body Odor see Germs and Hygiene Bone Infections Botulinum Toxin see Botulism Botulism Break-bone Fever see Dengue Bronchiolitis see …

Dec 24, 2025 · Infectious disease is a process caused by an agent, often a microorganism, that impairs a person’s health. Infectious diseases typically are caused by bacteria, viruses, fungi, or parasites.

Jun 2, 2024 · What’s the difference between a bacterial and viral infection? WebMD explains, and provides information on the causes and treatments for both.

Infection occurs when viruses, bacteria, or other microbes enter your body and begin to multiply. Disease, which typically happens in a small proportion of infected people, occurs when the cells in …

Sep 7, 2025 · Infections can occur throughout the body whether caused by bacteria, viruses, parasites, or fungi. Learn some of the signs and symptoms of an infection.