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The influenza A and B versions that can infect humans have different proteins and they behave a little differently. ... (Learn the difference between Covid-19 symptoms vs. flu symptoms.)
Americans are in the throes of flu season in large swaths of the country. Data − from traces in wastewater to hospitalizations − show higher levels of flu virus circulating in most of the U.S ...
Flu. Symptoms. Sore throat, runny or stuffy nose and cough are all symptoms that the flu (aka influenza) shares with other respiratory viruses. ... and influenza A and B (the viruses that cause ...
Influenza B virus mainly infects humans but has been identified in seals, horses, dogs, and pigs. [23] Influenza B virus does not have subtypes like influenza A virus but has two antigenically distinct lineages, termed the B/Victoria/2/1987-like and B/Yamagata/16/1988-like lineages, [1] or simply (B/)Victoria(-like) and (B/)Yamagata(-like).
Looking into influenza B specifically, Thomas Francis Jr. isolated influenza B virus in 1936. However, it was not until 1940 that influenza B viruses were discovered. [24] In 1942, a new bivalent vaccine was developed that protected against both the H1N1 strain of influenza A and the newly discovered influenza B virus. [25]
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 ...
Flu A, particularly H1N1, accounts for the majority of cases, though flu B, which is often more severe in children, is also being reported. Flu symptoms doctors are seeing in kids this season
Polyvalent influenza vaccine is a type of influenza vaccine that provides immunity against more than one type of antigen. [1] In the second week after receiving the flu shot, the body's immune system is triggered by the antigens so the body starts producing antibodies.