what is the difference between seasonal epidemic and pandemic flu?
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A flu pandemic is a global outbreak of a new flu A virus in people that is very different from current and recently circulating seasonal flu A viruses. How often do seasonal flu epidemics occur? Epidemics of seasonal flu happen every year. Fall and winter is the time for flu in the United States.
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A viral infection will therefore be systemic, spreading throughout the body. Systemic diseases caused by viral infection include influenza, measles, polio, AIDS, and COVID-19. Pathogenic bacteria have a more varied operation and will often infect when the right opportunity arises, so called opportunistic infection.
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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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Although colds and seasonal allergies may share some of the same symptoms, they are very different diseases. Common colds are caused by viruses, while seasonal allergies are immune system responses triggered by exposure to allergens, such as seasonal tree or grass pollens.
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The flu is “a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and sometimes the lungs,” according to the CDC, which says as many as 11% of Americans get it each season. It says symptoms include some or all of the following: Fever. Cough and sore throat.
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Prevalence and incidence are frequently confused. Prevalence refers to proportion of persons who have a condition at or during a particular time period, whereas incidence refers to the proportion or rate of persons who develop a condition during a particular time period.
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In terms of infectious illnesses, germs make you sick, not cold weather itself. You have to come in contact with rhinoviruses to catch a cold. And you need to be infected with influenza viruses to contract the flu. Rhinoviruses peak in spring and fall, and influenza viruses peak in winter.
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The cold virus is more common in cold-weather months, such as fall and winter, and rainy seasons. During these seasons, you're more likely to spend a lot of time indoors. This puts you in closer proximity with other people, raising your risk of catching the cold virus and passing it onto others.
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The difference between seasonal unemployment and structural unemployment is . . . ... seasonal unemployment is generally among low-paid workers, whereas structural is among the highly paid. seasonal unemployment occurs because of schedules, whereas structural occurs because people lack skills.
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The flu has a number of recognizable symptoms that are used in diagnosis. Rashes or hives are not among them. That being said, there have been some case reports of rash accompanying flu. A 2011 article indicated that a rash occurs in about 2% of patients with influenza A, and in some cases for pandemic A (H1N1).
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Influenza — commonly known as the flu — is a respiratory infection caused by flu viruses. There are three main types of influenza: A, B, and C. Types A and B are similar, but influenza B can only pass from human to human.
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The single best way to prevent seasonal flu is to get vaccinated each year, but good health habits like covering your cough and washing your hands often can help stop the spread of germs and prevent respiratory illnesses like the flu. There also are flu antiviral drugs that can be used to treat and prevent flu.
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The flu is a contagious disease, and it can cause mild to severe symptoms along with life-threatening complications, even in young, healthy children and adults. Since 2010, the flu has killed from 12,000 to 79,000 people annually in the U.S. and affected about 9.3 million to 49 million annually.
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It is not illegal to die in the town of Longyearbyen, Norway. ... This is because the bodies of town members who died during the 1918 flu pandemic have not decomposed due to the permafrost, and there are concerns that the bodies still contain active strains of the virus.
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In general, flu is worse than the common cold, and symptoms are more intense. Colds are usually milder than flu. People with colds are more likely to have a runny or stuffy nose. Colds generally do not result in serious health problems, such as pneumonia, bacterial infections, or hospitalizations.
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Pneumonia vs. Cold symptoms tend to start slowly. You're more likely to sneeze and have a runny nose and sore throat than with either the flu or pneumonia.
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Difference Between Flu and Viral Infections Illnesses like influenza, or “the flu,” and upper respiratory infections (URIs) fall under the category of viral infections, while illnesses such as pneumonia, sinusitis and ear infections are considered bacterial infections.