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Coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus. Most people infected with the virus will experience mild to moderate respiratory illness and recover without requiring special treatment. However, some will become seriously ill and require medical attention. Older people and those with underlying medical ...
Mar 27, 2024 · Causes. COVID-19 is caused by infection with the severe acute respiratory syndrome coronavirus 2, also called SARS-CoV-2. The coronavirus spreads mainly from person to person, even from someone who is infected but has no symptoms. When people with COVID-19 cough, sneeze, breathe, sing or talk, their breath may be infected with the COVID-19 virus.
Nov 8, 2023 · For most viral infections, treatments can only help with symptoms while you wait for your immune system to fight off the virus. There are antiviral medicines to treat some viral infections. Antibiotics do not work for viral infections. Can viral infections be prevented? Vaccines can help prevent you from getting many viral diseases. You may be ...
Nov 20, 2020 · The symptoms of viral diseases can affect almost any area of the body or body system. Symptoms of viral diseases can include: Flu-like symptoms ( fatigue, fever, sore throat, headache, cough, aches and pains) Gastrointestinal disturbances, such as diarrhea, nausea and vomiting. Irritability. Malaise (general ill feeling) Rash.
A virus is composed of nucleic acid, either DNA or RNA, surrounded by a protein coat. It requires a living cell in which to multiply. 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 ...
Fever, cough, runny nose, red Fever, cough, runny nose, inflamed eyes, rash. Typically, clinical diagnosis begins with the onset of fever and malaise about 10 days after exposure to the measles virus, followed by the emergence of cough, coryza, and conjunctivitis that worsen in severity over 4 days of appearing.
Aug 9, 2023 · COVID-19 is a disease caused by a virus. The most common symptoms are fever, chills, and sore throat, but there are a range of others. Most people make a full recovery without needing hospital treatment. People with severe symptoms should seek medical care as soon as possible. Over 760 million cases and 6.9 million deaths have been recorded ...
