how long is someone contagious with measles?
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Someone exposed to the virus usually shows symptoms 7–14 days later. People with measles can spread the disease from 4 days before the rash starts until about 4 days after that. They're most contagious while they have a fever, runny nose, and cough.
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You can be contagious from a few days up to two weeks or more, depending on which virus is causing your stomach flu (gastroenteritis). A number of viruses can cause gastroenteritis, including noroviruses and rotaviruses.
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Once your symptoms do appear, they may last for two to four weeks. You can pass the virus to other people through your saliva for up to three months after your symptoms subside. Some studies have reported that you may still be contagious for up to 18 months.
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Measles typically begins with a mild to moderate fever, often accompanied by a persistent cough, runny nose, inflamed eyes (conjunctivitis) and sore throat. This relatively mild illness may last two or three days. Acute illness and rash. The rash consists of small red spots, some of which are slightly raised.
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How long are people contagious? People infected with norovirus are contagious from the moment they begin feeling ill to at least 3 days after recovery. Some people may be contagious for as long as 2 weeks after recovery.
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Symptoms of influenza usually appear 1-4 days after exposure. How long can a person spread influenza? Persons are most contagious during the 24 hours before symptoms appear and may be contagious for up to 5 -7 days after getting sick.
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It takes an average of 10–12 days from exposure to the first symptom, which is usually fever. The measles rash doesn't usually appear until approximately 14 days after exposure, 2–3 days after the fever begins.
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What is the contagious period for an enterovirus infection? In general, individuals are contagious about three days after exposure to the virus and remain contagious until about 10 days after they develop symptoms.
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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).
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Typically, you're contagious from 1 day before you have any symptoms. You stay that way for 5 to 7 days after you start feeling sick.
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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.
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Children. CDC recommends all children get two doses of MMR (measles-mumps-rubella) vaccine, starting with the first dose at 12 through 15 months of age, and the second dose at 4 through 6 years of age. Children can receive the second dose earlier as long as it is at least 28 days after the first dose.
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Causes. Measles is caused by infection with the rubeola virus. The virus lives in the mucus of the nose and throat of an infected child or adult. The disease is contagious for 4 days before the rash appears, and it continues to be contagious for about 4 to 5 days after.
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About a week. Typically, you're contagious from 1 day before you have any symptoms. You stay that way for 5 to 7 days after you start feeling sick. The virus can be spread until symptoms disappear.
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The measles shot can cause a fever (10% of children) and rash (5% of children). This occurs about 6 to 12 days after the shot. Mild fever under 103° F (39.5°C) in 10% and lasts 2 or 3 days.
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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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Typical time it takes for symptoms to show up once you've caught the virus is one to four days. Adults can be contagious from the day before symptoms begin through five to 10 days after the illness starts.