What diseases can viruses cause

what diseases can viruses cause

10 Diseases Caused by the Most Common Viruses

8 rows · Jan 10,  · Many viruses cause no harm or disease whatsoever. However, some viruses may attack certain. Oct 19,  · Viruses cause familiar infectious diseases such as the common cold, flu and warts. They also cause severe illnesses such as HIV/AIDS, Ebola, and COVID Viruses are like hijackers. They invade living, normal cells and use those cells to multiply and produce other viruses like themselves.

Viruses are very tiny germs. Diseasfs are made of genetic material inside of a protein coating. Viruses cause familiar infectious diseases such as the common coldflu and warts. Viruses are like hijackers. They invade living, normal cells and use those cells to multiply and produce other viruses like themselves.

This can kill, damage, or change the cells and make you sick. Different viruses attack certain cells in your body such as your liver, respiratory system, or blood. When you get a virus, you may not always get sick from it. Your immune system may be able to fight it off. For most viral infections, treatments can only help with symptoms while you wait for your immune system to fight off the virus.

What is a liquidity facility do not work for viral infections. There are antiviral medicines to treat some viral infections. Vaccines can help prevent you from getting many viral diseases. Viral Infections. Learn More Related Issues Specifics. See, Play and Learn Images. Research Clinical Trials Journal Articles. Resources Find an Expert. For You Children Patient Handouts. Start Here. Bacterial xiseases.

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Infectious diseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites. Many organisms live in and on our bodies. They're normally harmless or even helpful. But under certain conditions, some organisms may cause disease. Some infectious diseases can be passed from person to person.

Some are transmitted by insects or other animals. And you may get others by consuming contaminated food or water or being exposed to organisms in the environment. Signs and symptoms vary depending on the organism causing the infection, but often include fever and fatigue.

Mild infections may respond to rest and home remedies, while some life-threatening infections may need hospitalization. Many infectious diseases, such as measles and chickenpox, can be prevented by vaccines.

Frequent and thorough hand-washing also helps protect you from most infectious diseases. Each infectious disease has its own specific signs and symptoms. General signs and symptoms common to a number of infectious diseases include:. An easy way to catch most infectious diseases is by coming in contact with a person or an animal with the infection. Infectious diseases can be spread through direct contact such as:.

Person to person. Infectious diseases commonly spread through the direct transfer of bacteria, viruses or other germs from one person to another. This can happen when an individual with the bacterium or virus touches, kisses, or coughs or sneezes on someone who isn't infected.

These germs can also spread through the exchange of body fluids from sexual contact. The person who passes the germ may have no symptoms of the disease, but may simply be a carrier. Disease-causing organisms also can be passed by indirect contact. Many germs can linger on an inanimate object, such as a tabletop, doorknob or faucet handle.

When you touch a doorknob handled by someone ill with the flu or a cold, for example, you can pick up the germs he or she left behind. If you then touch your eyes, mouth or nose before washing your hands, you may become infected. Some germs rely on insect carriers — such as mosquitoes, fleas, lice or ticks — to move from host to host. These carriers are known as vectors. Mosquitoes can carry the malaria parasite or West Nile virus.

Deer ticks may carry the bacterium that causes Lyme disease. Disease-causing germs can also infect you through contaminated food and water. This mechanism of transmission allows germs to be spread to many people through a single source.

Escherichia coli E. While anyone can catch infectious diseases, you may be more likely to get sick if your immune system isn't working properly. This may occur if:.

In addition, certain other medical conditions may predispose you to infection, including implanted medical devices, malnutrition and extremes of age, among others. Most infectious diseases have only minor complications. But some infections — such as pneumonia, AIDS and meningitis — can become life-threatening. A few types of infections have been linked to a long-term increased risk of cancer:. In addition, some infectious diseases may become silent, only to appear again in the future — sometimes even decades later.

For example, someone who's had chickenpox may develop shingles much later in life. Prepare food safely. Keep counters and other kitchen surfaces clean when preparing meals. Cook foods to the proper temperature, using a food thermometer to check for doneness.

For ground meats, that means at least F 71 C ; for poultry, F 74 C ; and for most other meats, at least F 63 C. Also promptly refrigerate leftovers — don't let cooked foods remain at room temperature for long periods of time.

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Overview Infectious diseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites. Request an Appointment at Mayo Clinic. What are superbugs and how can I protect myself from infection? Share on: Facebook Twitter. Show references Facts about infectious disease. Infectious Disease Society of America. Accessed May 29, Jameson JL, et al. Approach to the patient with an infectious disease. In: Harrison's Principles of Internal Medicine.

New York, N. Clean hands count for safe health care. Centers for Disease Control and Prevention. Kumar P, et al. Infectious diseases and tropical medicine. In: Kumar and Clark's Clinical Medicine. Philadelphia, Pa. LaRocque R, et al. Causes of infectious diarrhea and other foodborne illnesses in resource-rich settings. Ryan KJ, ed. Infectious diseases: Syndromes and etiologies.

In: Sherris Medical Microbiology. File TM, et al. Epidemiology, pathogenesis, and microbiology of community-acquired pneumonia in adults. Accessed May DeClerq E, et al. Approved antiviral drugs over the past 50 years. Clinical Microbiology Reviews. Mousa HAL. Prevention and treatment of influenza, influenza-like illness and common cold by herbal, complementary, and natural therapies. Caring for someone sick.

Germs Infection: Bacterial or viral? Mayo Clinic Minute: What is the Asian longhorned tick? Types of infectious agents What are superbugs and how can I protect myself from infection? What is chikungunya fever, and should I be worried? What is the Asian longhorned tick and where is it found? Show more related content. Mayo Clinic Marketplace Check out these best-sellers and special offers on books and newsletters from Mayo Clinic.

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