what is the difference between flu types?
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There are several different types of influenza virus: A, B, C, and D. Influenza types A, B, and C can cause illness in humans. But types A and B cause seasonal epidemics of respiratory illness nearly every year. Influenza A typically causes the majority of illnesses during flu season.
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The injected flu vaccine given to adults contains inactivated flu viruses, so it cannot give you flu. The children's nasal spray flu vaccine contains live but weakened flu viruses that will not give your child flu.
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Conclusions: Influenza A H3N2 infection was more severe than A H1N1 or B in terms of fever, leukopenia, and C-reactive protein. Myalgia and other symptoms such as fever, headache, general malaise and sore throat were equally frequent in influenza A H3N2, A H1N1, and B infections.
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Flu versus the common cold If you have flu-like symptoms but no fever, you might suspect that you have a cold. It is not always easy to tell the difference, and even a cold can cause you to have a mild fever. In general, all symptoms are worse when you have the flu.
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What Is Type B Flu Virus? Unlike type A flu viruses, type B flu is found only in humans. Type B flu may cause a less severe reaction than type A flu virus, but occasionally, type B flu can still be extremely harmful. Influenza type B viruses are not classified by subtype and do not cause pandemics.
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Two types of influenza vaccine are widely available: inactivated influenza vaccines (IIV) and live attenuated influenza vaccines (LAIV). Traditionally, influenza vaccines (both IIV and LAIV) have been produced to protect against 3 different seasonal influenza viruses (also called trivalent vaccines).
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Symptoms Are Similar to Without proper diagnosis, all canine respiratory diseases look similar. Dog Flu is a viral disease and therefore is more difficult to treat than canine (kennel) cough, which is a bacterial infection easily treated with antibiotics.
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The symptoms of flu can include fever or feeling feverish/chills, cough, sore throat, runny or stuffy nose, muscle or body aches, headaches and fatigue (tiredness). Cold symptoms are usually milder than the symptoms of flu. People with colds are more likely to have a runny or stuffy nose.
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One of the most distinct symptoms of the flu (influenza) is painful body aches. 1﻿ For most people, their muscles feel so sore and achy it hurts to move. Additionally, body aches can leave you feeling weak, fatigued, and extremely exhausted.
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Influenza symptoms Most people run a fever, and high temperatures in the 103 F to 104 F range are common. Nearly everyone has a runny nose and sore throat, but unlike ordinary colds, the flu also produces a hacking, dry cough. Muscle and joint aches can be severe.
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One of the most distinct symptoms of the flu (influenza) is painful body aches. 1﻿ For most people, their muscles feel so sore and achy it hurts to move. Additionally, body aches can leave you feeling weak, fatigued, and extremely exhausted. Fortunately, they can be treated and managed successfully.
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Two flu strains, peaking at different times At the start of the 2018-2019 flu season, the dominant circulating strain of virus was A(H1N1), and the flu vaccine was well matched to it. The more virulent strain, A(H3N2), was present at a low level until mid-January, when its incidence started sharply increasing.
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Type B flu may cause a less severe reaction than type A flu virus, but occasionally, type B flu can still be extremely harmful. Influenza type B viruses are not classified by subtype and do not cause pandemics.
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Real flu (influenza) affects only your respiratory system — your nose, throat and lungs. Gastroenteritis, on the other hand, attacks your intestines, causing signs and symptoms, such as: Watery, usually nonbloody diarrhea — bloody diarrhea usually means you have a different, more severe infection.
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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.
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A cold is generally milder than the flu with symptoms that are less severe. While a cold would usually last a few days, a flu, on the other hand, tends to persist for a few days to weeks. At the onset of a cold, your child may develop a sore or scratchy throat, runny nose or be sneezing.
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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.