Viral Infection: Causes, Symptoms, Tests & Treatment - Cleveland Clinic
Nov 23, 2022 · Viral infections are illnesses you get from tiny organisms that use your cells to make more copies of themselves (viruses). Viral infections commonly cause respiratory and digestive illnesses, but viruses can also infect most other parts of your body.
Viral Infection | Viral Infection Symptoms - MedlinePlus
Nov 8, 2023 · Viruses cause familiar infections such as the common cold, but they also cause severe illnesses. Learn more about viral infections and their symptoms.
What Is a Viral Infection? - Health
Dec 18, 2023 · There are several types of viral infections, each of which can affect your body differently. Learn more about the symptoms, causes, and treatments.
Viruses: Definition, Types, Characteristics & Facts - Cleveland Clinic
Mar 29, 2023 · Viruses are microscopic organisms that can infect hosts, like humans, plants or animals. They’re a small piece of genetic information (DNA or RNA) inside of a protective shell (capsid). Some viruses also have an envelope. Viruses can’t reproduce without a host. Some common diseases caused by viruses include the flu, the common cold and COVID-19.
Are Viral Infections Contagious? - Verywell Health
Sep 10, 2024 · Viral infections occur when a virus enters the body and successfully takes over a host cell to begin the process of replicating. This can occur at the site of entry, also known as a localized infection, or the virus can spread throughout the body, causing a systemic infection.
Viral infection | definition of viral infection by ... - Medical Dictionary
invasion and multiplication of microorganisms in body tissues, as in an infectious disease. The infectious process is similar to a circular chain with each link representing one of the factors involved in the process. An infectious disease occurs only if …
Overview of Viral Infections - Infections - Merck Manual Consumer Version
A viral infection can lead to a spectrum of symptoms from asymptomatic (no overt symptoms) to severe disease. People may get viruses by swallowing or inhaling them, by being bitten by insects, through sexual contact, or congenitally (passed by a pregnant person to the fetus).
Overview of Viral Infections - The Merck Manuals
A viral infection is a sickness caused by a virus. Certain viruses change how your cells work, which can lead to cancer. For example, the hepatitis B and C viruses can lead to liver cancer. HPV (human papillomavirus) can lead to cervical cancer. How can doctors tell if I …
Viral Infections | Infectious Diseases - UC Davis Health
Viruses cause viral infections. These tiny germs get inside cells in your body, where they make copies of themselves and reproduce. Viruses spread from one infected person to another. Some viral infections get better without treatment.
Medical Definition of Viral infection - RxList
Viral infection: Infection caused by the presence of a virus in the body. Depending on the virus and the person's state of health, various viruses can infect almost any type of body tissue, from the brain to the skin.