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How long does it take to get swine flu?
How long is the incubation period for the flu?
How long does swine flu last?
Sep 8, 2020 · The known incubation period for the 2009 H1N1 influenza strains has a median duration of 2 days but ranges from 1 to 7 days. The virus replication occurs primarily in the upper and lower respiratory tract passages from the time of inoculation and peaks around 48 hours in most patients.
- 2022/10/25
The incubation period for the disease is about one to four days. 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.
- Overview
- What is the incubation period of the flu?
- When does the flu become contagious?
- What are the early symptoms of the flu?
- How does the flu spread?
- The bottom line
This period of time before you get symptoms of infection is called the incubation period. In cases of the flu, this is usually between one and four days.
Influenza, often just called the flu, is a respiratory illness that’s caused by a virus. It’s contagious, meaning it spreads from person to person.
While influenza viruses can circulate year-round, they’re more common in the fall and winter months of the year. This period is referred to as the flu season.
But once you get the virus, how long does it take to start feeling flu symptoms? Read on to learn more about how the flu develops and when it becomes contagious.
While the general incubation period for the flu is usually between one and four days, this period can vary from person to person. The average incubation period for the flu is two days.
This means that, on average, people start to develop flu symptoms about two days after coming into contact with the influenza virus.
Several things can influence how long the incubation period is for the flu, including:
•Infectious dose. This is the amount of virus you’ve been exposed to. Coming into contact with a larger amount of virus particles can shorten the incubation period.
•Route of infection. This refers to the way the virus enters your body. Some routes of infection are more efficient than others, which can either increase or decrease the incubation period.
•Pre-existing immunity. If you’ve been exposed to a certain virus before, your immune system may recognize it earlier, which can shorten the incubation period.
Once you have the influenza virus, you can spread it to other people about a day before you first notice symptoms.
Remember, the average incubation period for the flu is about two days. So, if you come into contact with virus on Saturday morning, you can potentially start spreading it to others by Sunday evening. And by Monday afternoon, you’ll likely start feeling the dreaded body aches that come with the flu.
Viral shedding refers to the release of the virus from your body into your surrounding environment. It tends to peak during your first day experiencing symptoms. This means you’re usually most contagious on this day. Once you develop symptoms, you’ll still be contagious for another five to seven days.
Children, older adults, and those with a weakened immune system may be contagious for a longer period of time.
It’s often hard to know when you have the flu coming on. Unlike the symptoms of the common cold, which develop gradually, the symptoms of the flu often come on suddenly.
The common symptoms of the flu can include:
•fever
•headache
•stuffy nose
•sore throat
The flu mostly spreads through respiratory particles that are released when your cough and sneeze. If you have the flu and sneeze in a crowded area, those around you can inhale the particles of your sneeze and get the virus.
The virus can also be transmitted through coming into contact with objects or surfaces, such as a door handle or keyboard, that are coated in these respiratory particles. If you touch a contaminated object and then touch your eyes, nose, or mouth, you may get the flu.
If you already have the flu, there are a few things you can do to reduce your risk of passing it to others:
•Stay home. The flu is extremely contagious, so it can spread quickly in crowded settings, such as schools and offices. Try to limit your contact with others until you’ve been fever-free for at least 24 hours.
•Wash your hands. Wash your hands with soap and warm water often, especially after coughing, sneezing, or touching your face. If soap and water aren’t available, use an alcohol-based hand sanitizer.
•Cover your mouth and nose. When you sneeze or tough, try to do so into a tissue or the crook of your elbow to reduce the spread of respiratory particles. Make sure to quickly throw away any used tissues.
The flu is a highly contagious respiratory infection that’s common in the colder months of the year. Once you’ve encountered the virus, it can take between one and four days to develop symptoms. Once you have the virus, you’ll be contagious starting about a day before you notice symptoms.
If you want to avoid the flu altogether, the Centers for Disease Control recommends getting the seasonal flu shot as your best bet. Here’s a look at the pros and cons of the flu shot.
Sep 25, 2023 · The swine flu incubation period (the amount of time it takes for the infection to develop after you have been exposed to H1N1) is up to seven days. An infected person can likely spread the virus from about a day before developing symptoms until about seven days after symptoms begin.
- Are swine flu symptoms different from normal human flu? Up-to-date news on the A(H1N1) Swine flu virus. Centers of excellence, health authorities, international health organizations, hospitals, and eminent doctors throughout the world send us their latest findings regarding swine flu every day.
- How would I know I had swine flu if I had some symptoms? You wouldn’t, neither would your doctor. A respiratory specimen would have to be taken within the first four to five days.
- How long are infected people contagious? An adult is usually contagious as long as they have symptoms – usually up to seven days following the beginning of the illness.
- What medications are there? There is Tamiflu or Relenza – both have shown to be effective against these recently reported strains of swine flu. There are four anti-viral drugs altogether that are commonly used to treat various strains of flu.
Flu symptoms develop about 1 to 4 days after you're exposed to the virus. When to see a doctor. If you're generally healthy and develop flu symptoms, most people may not need to see a health care provider. But some people are at higher risk of flu complications.
People can spread the infection for about 8 days, from the day before symptoms appear until symptoms are gone. Symptoms are usually mild but can become severe, leading to pneumonia or respiratory failure .
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