Infection - Wikipedia 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 transmissible disease or communicable disease, is an illness resulting from an infection
Infectious diseases - Symptoms causes - Mayo Clinic 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 infections can be life-threatening, and treatment could involve hospital care
What Are the 4 Types of Infections? - MedicineNet Infection occurs when germs enter your body and multiply, resulting in disease There are four main types of infections: Viral; Bacterial; Fungal; Parasitic; In response to an infection, the immune system goes into overdrive, activating white blood cells and antibodies to fight the foreign invader This can cause symptoms such as fever
Infection: Viral, Bacterial, Respiratory, and More Infections Infection is a result of a microorganism (also called a pathogen) entering the body and causing harm The organisms that cause infections are many and include things like viruses, bacteria, parasites, fungi, and prions
Infectious Diseases: Types, Causes Treatments - Cleveland Clinic Infectious diseases are illnesses caused by harmful germs (pathogens) that get into your body The most common causes are viruses, bacteria, fungi and parasites Infectious diseases usually spread from person to person, through contaminated food or water and through bug bites Contents What Are Infectious Diseases?
Overview of Infectious Disease - The Merck Manuals An infection is caused by harmful germs entering your body They can enter your body through: Your nose or mouth Your skin, from cuts, scratches, or bites Sexual contact with an infected partner Germs can get in your mouth if you eat or drink something with germs in it
What Is the Definition of Infection According to WHO? According to WHO, an infection is the invasion and multiplication of harmful microorganisms, such as bacteria, viruses, or parasites, within a host organism Infections can occur in various parts of the body, from the respiratory tract to the urinary tract or even the bloodstream