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- Germs: Understand and protect against bacteria, viruses and infections
Viruses are responsible for causing many diseases, including: Common cold Influenza Measles Chickenpox and shingles Coronavirus disease 2019, also called COVID-19 Antibiotics kill or block activities bacteria need to live or grow, but antibiotics don't work on viruses Medicine that treats viral infections is called an antiviral
- Bacterial vs. viral infections: How do they differ? - Mayo Clinic
Viruses that become resistant to antivirals have affected treatment, including for genital herpes, HIV and, in 2008, for influenza (flu) Treating and preventing bacterial and viral infections In some cases, it can be hard to figure out if a bacterial infection or a viral infection is causing your symptoms
- Influenza (flu) - Symptoms and causes - Mayo Clinic
Influenza viruses are constantly changing, with new strains appearing often A person's first flu infection gives some long-term protection against similar strains of flu But the vaccines offered each year are made to match the flu virus strains that are most likely to spread that season
- Medical Diseases Conditions - Mayo Clinic
Explore comprehensive guides on hundreds of common and rare diseases and conditions from the experts at Mayo Clinic
- COVID-19, cold, allergies and the flu: What are the differences?
The flu is caused by influenza A, B and C viruses All of these viruses spread in similar ways COVID-19 and the flu cause many of the same symptoms, but there are some differences The diseases also can cause no symptoms or cause mild or severe symptoms Because the symptoms can overlap, testing may be done to see if you have COVID-19 or the flu
- Respiratory syncytial virus (RSV) - Mayo Clinic
Respiratory syncytial virus (RSV) causes infections of the lungs and respiratory tract It's so common that most children have been infected with the virus by age 2 Respiratory syncytial (sin-SISH-ul) virus can also infect adults In adults and older, healthy children, RSV symptoms are mild and
- Bells palsy - Symptoms and causes - Mayo Clinic
Viruses that have been linked to Bell's palsy include viruses that cause: Cold sores and genital herpes, also known as herpes simplex Chickenpox and shingles, also known as herpes zoster Infectious mononucleosis, caused by the Epstein-Barr virus Cytomegalovirus infections Respiratory illnesses, caused by adenoviruses
- Common cold - Symptoms and causes - Mayo Clinic
Causes Many viruses can cause a common cold Rhinoviruses are the most common cause A cold virus enters the body through the mouth, eyes or nose The virus can spread by: Droplets in the air when someone who is sick coughs, sneezes or talks Hand-to-hand contact with someone who has a cold
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