what is the difference between contagious and contagion?
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A contagious disease is one that can be spread from person to person. A contagion, like a virus or bacteria, is the agent responsible for causing contagious diseases.
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The incubation period for a cold is between one and four days. It's typically most contagious a day or two before symptoms appear but can be passed along when the cold is already under way. Once the really runny nose dries up, it's less contagious.
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Viral diseases are contagious and spread from person to person when a virus enters the body and begins to multiply. Viral diseases are not treatable with antibiotics, which can only cure bacterial diseases and infections.
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Because it is caused by infectious microbes, viral pneumonia is contagious. However, this lung infection is considered less contagious than the flu. Your risk rises if you smoke or have certain underlying medical conditions such as heart disease or diabetes.
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Period of Contagiousness People with flu are most contagious in the first 3-4 days after their illness begins. Some otherwise healthy adults may be able to infect others beginning 1 day before symptoms develop and up to 5 to 7 days after becoming sick.
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Cold sores are highly contagious from the time the first symptom appears. This is usually 1–2 days before the sore becomes visible. Sores remain highly contagious until the skin completely heals. This can take up to 15 days.
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Influenza (Flu) and COVID-19 are both contagious respiratory illnesses, but they are caused by different viruses. COVID-19 is caused by infection with a new coronavirus (called SARS-CoV-2) and flu is caused by infection with influenza viruses.
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An Epstein-Barr virus is contagious during its long incubation period (four to seven weeks, see below) and then until symptoms are gone; however, there is evidence that some people may still spread the virus to others for many months even after symptoms are gone.
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Communicable diseases are infectious diseases. An infectious disease is contagious when it spreads through direct, bodily contact with an infected person, their discharges, or an object or surface they've contaminated.
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How long will I be contagious due to bronchitis? It depends on the type of virus that you have. In most cases, you'll be contagious for a few days, and possibly as long as a week.
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Once a person is infected and sick, they can be contagious and spread the virus for about 7 to 10 days. The virus can be spread through close personal contact such as kissing, or sharing drinking cups, forks, or spoons. It can also spread through droplets in the air when an infected person coughs or sneezes.
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Genital warts are more contagious, or more easily spread, than other warts. They are spread by skin-to-skin contact. They may spread to other nearby parts of the body and they may be passed from person to person by sexual activity.
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You are most contagious soon after you are infected. Adults who are otherwise healthy are no longer contagious two weeks after the illness begins. Children and people with weak immune systems may be contagious for up to six months.
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Unfortunately, fever & contagiousness are unrelated. Some contagious illnesses - such as the common cold - may never cause a fever, while others will take a while for a fever to show up. Viruses, with or without a fever, tend to be contagious.
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Viruses, with or without a fever, tend to be contagious. They can be spread in many ways - commonly, they are spread through droplets of saliva expelled while talking, coughing or sneezing. These droplets may contain virus even before one has developed a fever.
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Is hepatitis B contagious? Hepatitis B is highly contagious. It spreads through contact with infected blood and certain other bodily fluids. Although the virus can be found in saliva, it's not spread through sharing utensils or kissing.
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For colds, most individuals become contagious about a day before cold symptoms develop and remain contagious for about five to seven days. Some children may pass the flu viruses for longer than seven days (occasionally for two weeks). Colds are considered upper respiratory infections.