Swine influenza viruses can circulate among swine throughout the year, but most outbreaks occur during the late fall and winter months similar to outbreaks in humans. Like influenza viruses in humans and other animals, swine flu viruses change constantly. Pigs can be infected by avian influenza and human influenza viruses as well as swine influenza viruses. When influenza viruses from different species infect pigs, the viruses can reassort i. Over the years, different variations of swine flu viruses have emerged.
Swine flu viruses are thought to be spread among pigs mostly through close contact and possibly from contaminated objects moving between infected and uninfected pigs. Infected swine herds, including those vaccinated against swine flu, may have sporadic disease, or may show only mild or no symptoms of infection.
Signs of swine flu in pigs can include fever, depression, coughing barking , discharge from the nose or eyes, sneezing, breathing difficulties, eye redness or inflammation, and going off feed. Some pigs infected with influenza, however, may show no signs of illness at all. H1N1 and H3N2 swine flu viruses are endemic among pig populations in the United States and something that the industry deals with routinely.
Outbreaks among pigs normally occur in colder weather months late fall and winter , but can occur year round. While H1N1 swine viruses have been known to circulate among pig populations since at least , H3N2 influenza viruses did not begin circulating among pigs in the United States until about The H3N2 viruses initially were introduced into the pig population from humans.
However, since then the H3N2 viruses circulating in pigs have changed. The swab will be analyzed using various genetic and laboratory techniques to identify the specific type of virus. Learn more: Throat swab culture ». You should focus on relieving your symptoms and preventing the spread of the H1N1 to other people. Two antiviral drugs are recommended for treating swine flu: the oral drugs oseltamivir Tamiflu and zanamivir Relenza.
People who are otherwise generally healthy and get swine flu will be able to fight the infection on their own. Read more: 11 Cold and flu home remedies ». Severe cases of swine flu can be fatal. The majority of people with swine flu recover and can anticipate a normal life expectancy. The best way to prevent swine flu is to get a yearly flu vaccination.
Other easy ways to prevent swine flu include:. Flu season shifts from year to year, but in the United States it generally starts in October and runs until as late as May. For most people, the flu presents a few days of feeling miserable. For others, including very young children and older adults, the flu can be more….
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The flu vaccine, which typically comes as a shot or nasal spray, can reduce your chances of getting the flu by as much as 60 percent. Flu shot side…. The flu shot has been found to be safe for most people. Learn more about the ingredients in the vaccine. They also expect to see more flu…. Trying to avoid close contact with sick people. Staying home from work or school if you are sick.
Centers for Disease Control and Prevention. Start Here. Prevention and Risk Factors. Related Issues. Statistics and Research. Clinical Trials. Article: The private versus public contribution to the biomedical literature during the H1N1 Flu Swine Flu -- see more articles.
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