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There are two different influenza A dog flu viruses: one is an H3N8 virus and the other is an H3N2 virus. [88] The H3N8 strain has evolved from an equine influenza avian virus which has adapted to sustained transmission among dogs. The H3N2 strain is derived from an avian influenza which jumped to dogs in 2004 in either Korea or China. [88]
In humans, influenza viruses first cause infection by infecting epithelial cells in the respiratory tract. Illness during infection is primarily the result of lung inflammation and compromise caused by epithelial cell infection and death, combined with inflammation caused by the immune system's response to infection. Non-respiratory organs can ...
A flu infection typically causes these symptoms: Fever. Cough. Sore throat. ... There are combination at-home tests available now that can detect the viruses that cause COVID-19 and the flu, ...
Influenza A is really the only flu virus type that can cause a pandemic, says Beth Oller, MD, a practicing family physician in Stockton, Kansas. A flu pandemic is when a new type of influenza ...
Influenza-like illness (ILI), also known as flu-like syndrome or flu-like symptoms, is a medical diagnosis of possible influenza or other illness causing a set of common symptoms. These include fever, shivering , chills , malaise , dry cough , loss of appetite , body aches, nausea , and sneezing typically in connection with a sudden onset of ...
There’s a whole range of things that can cause gastroenteritis, including viruses and bacteria. ... The exact symptoms of your 24-hour flu will depend on what, exactly, caused the illness. But ...