influenza virus the flu infectious disease caused |
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| navigate by keyword : abstract antiviral avian background bacteria bacterium biology cell closeup colorful disease epidemic flu germ germs graphic h1n1 health hiv human illness illustration infection infectious influenza isolated macro medical medicine micro microbe microbiology microorganism microscope microscopic microscopy molecular organism render rendering rna science sick sickness structure viral virology virus |
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| Influenza virus, the flu is an infectious disease caused by an influenza virus. Common symptoms include: high fever, runny nose, sore throat, muscle pains, headache, coughing, sneezing, and feeling tired. Microscope view. 3d rendering |
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