are you contagious with the flu if you have no fever?
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It is important to know that even if you don't have a fever, you may have flu and be contagious if you get flu symptoms.
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If you have a viral infection, you will be contagious until your fever runs its course. If you have strep throat, you may be contagious from the onset until you've spent 24 hours on antibiotics. The common cold usually lasts less than 10 days. Symptoms, including fever, may peak around three to five days.
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Symptoms can begin about 2 days (but can range from 1 to 4 days) after the virus enters the body. That means that you may be able to pass on the flu to someone else before you know you are sick, as well as while you are sick. Some people can be infected with the flu virus but have no symptoms.
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People with flu are most contagious in the first three to four days after their illness begins. Most 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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Symptoms can begin about 2 days (but can range from 1 to 4 days) after the virus enters the body. That means that you may be able to pass on the flu to someone else before you know you are sick, as well as while you are sick.
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“Most people are contagious with a cold a day before they notice symptoms until about a week after the onset of symptoms,” Pittman said. “The CDC's recommendation is to stay home until you are fever free for 24 hours without the help of a fever reducer.”
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Swine flu is contagious about one day before symptoms develop to about five to seven days after symptoms develop; some patients may be contagious for a longer time span. The disease lasts about three to seven days with more serious infections lasting about nine to 10 days.
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For most flu viruses, that window is about a week, starting from a day before your symptoms appear, to six or seven days afterward. For colds, even people who are feeling better can spread the virus to others for up to three weeks.
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Flu is a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and sometimes the lungs. It can cause mild to severe illness, and at times can lead to death. The best way to prevent flu is by getting a flu vaccine each year.
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You're more likely to sneeze and have a runny nose and sore throat than with either the flu or pneumonia. Colds don't usually cause a fever in adults.
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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. From: What Are Your Odds of Getting the Flu? SOURCE: Centers for Disease Control.
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A fever, headache, and other aches and pains are common with the flu but less so with colds. People who have colds usually have a stuffy nose and sore throat. That's less common when you have the flu. Flu symptoms often hit suddenly, which makes you weaker and weaker.
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Ear infections alone aren't contagious. However, the organisms that increase your risk of getting an ear infection can be contagious, such as those from the common cold and flu. With simple, healthy habits, you can reduce your risk of developing an ear infection.
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It may take one to four days after exposure to the influenza virus for symptoms to develop. If you have the flu, you'll be contagious one day before developing symptoms and up to five to seven days after becoming ill. Younger children or people with a weakened immune system may be contagious for longer.
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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.
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People with HFMD are most contagious during the first week of their illness. However, they may sometimes remain contagious for weeks after symptoms go away. Some people, especially adults, may not develop any symptoms, but they can still spread the viruses to others.
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Stay away from others as much as possible to keep from making others sick. Continue to cover coughs and sneezes and wash hands even after you return to work. It is important to know that even if you don't have a fever, you may have flu and be contagious if you get flu symptoms.