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September 20, 2024 at 12:22 PM. (Reuters) - The U.S. Food and Drug Administration said on Friday it has approved AstraZeneca's influenza nasal spray vaccine for self-administration, making it the ...
There are variations within those types of vaccines, including flu shots that are egg-free, if you prefer one of those. You also have the option of getting a nasal flu vaccine called FluMist ...
For most people who only need one dose of the flu shot, September and October are generally the best times to get vaccinated, according to the U.S. Centers for Disease Control and Prevention (CDC ...
Influenza vaccine. Influenza vaccines, colloquially known as flu shots, are vaccines that protect against infection by influenza viruses. [14][15] New versions of the vaccines are developed twice a year, as the influenza virus rapidly changes. [14] While their effectiveness varies from year to year, most provide modest to high protection ...
Frequency. 3–5 million severe cases per year [1][2] Deaths. >290,000–650,000 deaths per year [3][4] Influenza, commonly known as " the flu " or just " flu ", is an infectious disease caused by influenza viruses. Symptoms range from mild to severe and often include fever, runny nose, sore throat, muscle pain, headache, coughing, and fatigue.
An mRNAvaccine is a type of vaccine that uses a copy of a molecule called messenger RNA (mRNA) to produce an immune response. [ 1 ] The vaccine delivers molecules of antigen -encoding mRNA into immune cells, which use the designed mRNA as a blueprint to build foreign protein that would normally be produced by a pathogen (such as a virus) or by ...
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