It's not necessary to see a doctor if you're generally healthy and develop flu signs and symptoms, such as fever, cough and body aches. Call your doctor, however, if you have flu symptoms and you're pregnant or you have a chronic disease, such as asthma, emphysema, diabetes or a heart condition, because you have a higher risk of flu complications. If you have emergency signs and symptoms of the flu, get medical care right away.
For adults, emergency signs and symptoms can include:. Influenza viruses such as H1N1 infect the cells that line your nose, throat and lungs. The virus enters your body when you inhale contaminated droplets or transfer live virus from a contaminated surface to your eyes, nose or mouth.
If you live in or travel to an area where many people are infected with the H1N1 virus, you may be exposed to the virus. Each year's seasonal flu vaccine protects against the three or four influenza viruses that are expected to be the most common during that year's flu season. The flu vaccine can reduce your risk of the flu and its severity and lower the risk of having serious illness from the flu and needing to stay in the hospital. Flu vaccination is especially important in the flu season because the flu and coronavirus disease COVID cause similar symptoms.
Preventing the flu and reducing the severity of flu illness and hospitalizations could also lessen the number of people needing to stay in the hospital.
The flu vaccine is available as an injection and as a nasal spray. The nasal spray is approved for use in healthy people ages 2 through 49 years old. The nasal spray isn't recommended for some groups, such as pregnant women, children between 2 and 4 years old with asthma or wheezing, and people who have compromised immune systems. For example, you may need to practice social distancing physical distancing and stay at least 6 feet 2 meters from others outside your household.
You may also need to wear a cloth face mask when around people outside your household. Mayo Clinic does not endorse companies or products.
Advertising revenue supports our not-for-profit mission. This content does not have an English version. This content does not have an Arabic version. Overview The H1N1 flu, commonly known as swine flu, is primarily caused by the H1N1 strain of the flu influenza virus. More Information Self-care for the flu. Request an Appointment at Mayo Clinic. More Information He's the bravest kid I've ever seen. More Information Flu masks Flu vaccine: Safe for people with egg allergy? However, this test can vary in effectiveness and may show a negative result when a certain influenza virus strain is present.
Most people do not need more than a rapid flu test, as treatment will be the same, regardless of the test outcome. Those whose work or lifestyle brings them into contact with swine and other animals should :.
Swine flu is a respiratory disease that transmits through droplets in the air and on surfaces. It is not possible to catch if from eating properly cooked pork. Another pandemic of H1N1 swine flu is much less likely now, as people have developed some degree of immunity. Before the — pandemic, there was no evidence that H1N1 had infected humans. Under the right conditions, however, a pandemic can occur if any novel virus moves from animals to humans.
Symptoms in pigs include :. A pandemic can happen when a disease spreads between countries and continents. Read more here. Some coronaviruses cause the common cold, while others cause more severe respiratory illnesses. Learn more about coronaviruses here. Learn all about MERS and other illnesses caused by coronaviruses here. Everything you need to know about swine flu. Medically reviewed by Stacy Sampson, D. Share on Pinterest A person can help prevent the spread of swine flu by washing their hands regularly with soap and water.
Lifestyle remedies. It originated in pigs but is spread primarily from person to person. Swine flu made headlines in when it was first discovered in humans and became a pandemic. Pandemics are contagious diseases affecting people throughout the world or on multiple continents at the same time.
Since then, the H1N1 virus has been known as a regular human flu virus. It continues to spread during flu season like other strains of the flu. Read more: Importance of getting a flu shot for flu season ».
Like other strains of the flu, H1N1 is highly contagious, allowing it to spread quickly from person to person. A simple sneeze can cause thousands of germs to spread through the air.
The virus can linger on tables and surface areas like door knobs, waiting to be picked up. The best means of dealing with swine flu is to prevent it.
Hand sanitization is important to stop the spread of the virus. Staying away from infected people will help stop person-to-person transmission. Start sanitizing now. When it first emerged, swine flu was most common in children 5 years and older and young adults. This was unusual because most flu virus infections are a higher risk for complications in older adults or the very young.
Today, risk factors for getting swine flu are the same as for any other strain of the flu. These groups include:. Swine flu is caused by a strain of influenza virus that usually only infects pigs.
Unlike typhus , which can be transmitted by lice or ticks , transmission usually occurs from person to person, not animal to person.
Swine flu is very contagious. The disease is spread through saliva and mucus particles. People may spread it by:. The symptoms of swine flu are very much like those of regular influenza. They include:. Your doctor can make a diagnosis by sampling fluid from your body. To take a sample, your doctor or a nurse may swab your nose or throat.
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